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-rw-r--r--fs/ufs/balloc.c107
-rw-r--r--fs/ufs/cylinder.c31
-rw-r--r--fs/ufs/dir.c283
-rw-r--r--fs/ufs/file.c1
-rw-r--r--fs/ufs/inode.c191
-rw-r--r--fs/ufs/namei.c76
-rw-r--r--fs/ufs/super.c357
-rw-r--r--fs/ufs/ufs.h37
-rw-r--r--fs/ufs/ufs_fs.h4
-rw-r--r--fs/ufs/util.c46
-rw-r--r--fs/ufs/util.h67
11 files changed, 524 insertions, 676 deletions
diff --git a/fs/ufs/balloc.c b/fs/ufs/balloc.c
index 53c11be2b2c1..194ed3ab945e 100644
--- a/fs/ufs/balloc.c
+++ b/fs/ufs/balloc.c
@@ -33,6 +33,29 @@ static u64 ufs_bitmap_search (struct super_block *, struct ufs_cg_private_info *
static unsigned char ufs_fragtable_8fpb[], ufs_fragtable_other[];
static void ufs_clusteracct(struct super_block *, struct ufs_cg_private_info *, unsigned, int);
+static void adjust_free_blocks(struct super_block *sb,
+ struct ufs_cylinder_group *ucg,
+ struct ufs_cg_private_info *ucpi,
+ unsigned fragment, int delta)
+{
+ struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
+
+ if ((UFS_SB(sb)->s_flags & UFS_CG_MASK) == UFS_CG_44BSD)
+ ufs_clusteracct(sb, ucpi, fragment, delta);
+
+ fs32_add(sb, &ucg->cg_cs.cs_nbfree, delta);
+ uspi->cs_total.cs_nbfree += delta;
+ fs32_add(sb, &UFS_SB(sb)->fs_cs(ucpi->c_cgx).cs_nbfree, delta);
+
+ if (uspi->fs_magic != UFS2_MAGIC) {
+ unsigned cylno = ufs_cbtocylno(fragment);
+
+ fs16_add(sb, &ubh_cg_blks(ucpi, cylno,
+ ufs_cbtorpos(fragment)), delta);
+ fs32_add(sb, &ubh_cg_blktot(ucpi, cylno), delta);
+ }
+}
+
/*
* Free 'count' fragments from fragment number 'fragment'
*/
@@ -43,7 +66,6 @@ void ufs_free_fragments(struct inode *inode, u64 fragment, unsigned count)
struct ufs_cg_private_info * ucpi;
struct ufs_cylinder_group * ucg;
unsigned cgno, bit, end_bit, bbase, blkmap, i;
- u64 blkno;
sb = inode->i_sb;
uspi = UFS_SB(sb)->s_uspi;
@@ -51,7 +73,7 @@ void ufs_free_fragments(struct inode *inode, u64 fragment, unsigned count)
UFSD("ENTER, fragment %llu, count %u\n",
(unsigned long long)fragment, count);
- if (ufs_fragnum(fragment) + count > uspi->s_fpg)
+ if (ufs_fragnum(fragment) + count > uspi->s_fpb)
ufs_error (sb, "ufs_free_fragments", "internal error");
mutex_lock(&UFS_SB(sb)->s_lock);
@@ -94,23 +116,11 @@ void ufs_free_fragments(struct inode *inode, u64 fragment, unsigned count)
/*
* Trying to reassemble free fragments into block
*/
- blkno = ufs_fragstoblks (bbase);
- if (ubh_isblockset(UCPI_UBH(ucpi), ucpi->c_freeoff, blkno)) {
+ if (ubh_isblockset(uspi, ucpi, bbase)) {
fs32_sub(sb, &ucg->cg_cs.cs_nffree, uspi->s_fpb);
uspi->cs_total.cs_nffree -= uspi->s_fpb;
fs32_sub(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nffree, uspi->s_fpb);
- if ((UFS_SB(sb)->s_flags & UFS_CG_MASK) == UFS_CG_44BSD)
- ufs_clusteracct (sb, ucpi, blkno, 1);
- fs32_add(sb, &ucg->cg_cs.cs_nbfree, 1);
- uspi->cs_total.cs_nbfree++;
- fs32_add(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nbfree, 1);
- if (uspi->fs_magic != UFS2_MAGIC) {
- unsigned cylno = ufs_cbtocylno (bbase);
-
- fs16_add(sb, &ubh_cg_blks(ucpi, cylno,
- ufs_cbtorpos(bbase)), 1);
- fs32_add(sb, &ubh_cg_blktot(ucpi, cylno), 1);
- }
+ adjust_free_blocks(sb, ucg, ucpi, bbase, 1);
}
ubh_mark_buffer_dirty (USPI_UBH(uspi));
@@ -139,7 +149,6 @@ void ufs_free_blocks(struct inode *inode, u64 fragment, unsigned count)
struct ufs_cg_private_info * ucpi;
struct ufs_cylinder_group * ucg;
unsigned overflow, cgno, bit, end_bit, i;
- u64 blkno;
sb = inode->i_sb;
uspi = UFS_SB(sb)->s_uspi;
@@ -181,26 +190,12 @@ do_more:
}
for (i = bit; i < end_bit; i += uspi->s_fpb) {
- blkno = ufs_fragstoblks(i);
- if (ubh_isblockset(UCPI_UBH(ucpi), ucpi->c_freeoff, blkno)) {
+ if (ubh_isblockset(uspi, ucpi, i)) {
ufs_error(sb, "ufs_free_blocks", "freeing free fragment");
}
- ubh_setblock(UCPI_UBH(ucpi), ucpi->c_freeoff, blkno);
+ ubh_setblock(uspi, ucpi, i);
inode_sub_bytes(inode, uspi->s_fpb << uspi->s_fshift);
- if ((UFS_SB(sb)->s_flags & UFS_CG_MASK) == UFS_CG_44BSD)
- ufs_clusteracct (sb, ucpi, blkno, 1);
-
- fs32_add(sb, &ucg->cg_cs.cs_nbfree, 1);
- uspi->cs_total.cs_nbfree++;
- fs32_add(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nbfree, 1);
-
- if (uspi->fs_magic != UFS2_MAGIC) {
- unsigned cylno = ufs_cbtocylno(i);
-
- fs16_add(sb, &ubh_cg_blks(ucpi, cylno,
- ufs_cbtorpos(i)), 1);
- fs32_add(sb, &ubh_cg_blktot(ucpi, cylno), 1);
- }
+ adjust_free_blocks(sb, ucg, ucpi, i, 1);
}
ubh_mark_buffer_dirty (USPI_UBH(uspi));
@@ -234,13 +229,13 @@ failed:
* situated at the end of file.
*
* We can come here from ufs_writepage or ufs_prepare_write,
- * locked_page is argument of these functions, so we already lock it.
+ * locked_folio is argument of these functions, so we already lock it.
*/
static void ufs_change_blocknr(struct inode *inode, sector_t beg,
unsigned int count, sector_t oldb,
- sector_t newb, struct page *locked_page)
+ sector_t newb, struct folio *locked_folio)
{
- struct folio *folio, *locked_folio = page_folio(locked_page);
+ struct folio *folio;
const unsigned blks_per_page =
1 << (PAGE_SHIFT - inode->i_blkbits);
const unsigned mask = blks_per_page - 1;
@@ -337,7 +332,7 @@ static void ufs_clear_frags(struct inode *inode, sector_t beg, unsigned int n,
u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
u64 goal, unsigned count, int *err,
- struct page *locked_page)
+ struct folio *locked_folio)
{
struct super_block * sb;
struct ufs_sb_private_info * uspi;
@@ -417,7 +412,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
result = ufs_alloc_fragments (inode, cgno, goal, count, err);
if (result) {
ufs_clear_frags(inode, result + oldcount,
- newcount - oldcount, locked_page != NULL);
+ newcount - oldcount, locked_folio != NULL);
*err = 0;
write_seqlock(&UFS_I(inode)->meta_lock);
ufs_cpu_to_data_ptr(sb, p, result);
@@ -441,7 +436,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
fragment + count);
read_sequnlock_excl(&UFS_I(inode)->meta_lock);
ufs_clear_frags(inode, result + oldcount, newcount - oldcount,
- locked_page != NULL);
+ locked_folio != NULL);
mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT, result %llu\n", (unsigned long long)result);
return result;
@@ -462,11 +457,11 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
result = ufs_alloc_fragments (inode, cgno, goal, request, err);
if (result) {
ufs_clear_frags(inode, result + oldcount, newcount - oldcount,
- locked_page != NULL);
+ locked_folio != NULL);
mutex_unlock(&UFS_SB(sb)->s_lock);
ufs_change_blocknr(inode, fragment - oldcount, oldcount,
uspi->s_sbbase + tmp,
- uspi->s_sbbase + result, locked_page);
+ uspi->s_sbbase + result, locked_folio);
*err = 0;
write_seqlock(&UFS_I(inode)->meta_lock);
ufs_cpu_to_data_ptr(sb, p, result);
@@ -698,7 +693,7 @@ static u64 ufs_alloccg_block(struct inode *inode,
struct super_block * sb;
struct ufs_sb_private_info * uspi;
struct ufs_cylinder_group * ucg;
- u64 result, blkno;
+ u64 result;
UFSD("ENTER, goal %llu\n", (unsigned long long)goal);
@@ -716,7 +711,7 @@ static u64 ufs_alloccg_block(struct inode *inode,
/*
* If the requested block is available, use it.
*/
- if (ubh_isblockset(UCPI_UBH(ucpi), ucpi->c_freeoff, ufs_fragstoblks(goal))) {
+ if (ubh_isblockset(uspi, ucpi, goal)) {
result = goal;
goto gotit;
}
@@ -729,22 +724,8 @@ norot:
gotit:
if (!try_add_frags(inode, uspi->s_fpb))
return 0;
- blkno = ufs_fragstoblks(result);
- ubh_clrblock (UCPI_UBH(ucpi), ucpi->c_freeoff, blkno);
- if ((UFS_SB(sb)->s_flags & UFS_CG_MASK) == UFS_CG_44BSD)
- ufs_clusteracct (sb, ucpi, blkno, -1);
-
- fs32_sub(sb, &ucg->cg_cs.cs_nbfree, 1);
- uspi->cs_total.cs_nbfree--;
- fs32_sub(sb, &UFS_SB(sb)->fs_cs(ucpi->c_cgx).cs_nbfree, 1);
-
- if (uspi->fs_magic != UFS2_MAGIC) {
- unsigned cylno = ufs_cbtocylno((unsigned)result);
-
- fs16_sub(sb, &ubh_cg_blks(ucpi, cylno,
- ufs_cbtorpos((unsigned)result)), 1);
- fs32_sub(sb, &ubh_cg_blktot(ucpi, cylno), 1);
- }
+ ubh_clrblock(uspi, ucpi, result);
+ adjust_free_blocks(sb, ucg, ucpi, result, -1);
UFSD("EXIT, result %llu\n", (unsigned long long)result);
@@ -863,12 +844,12 @@ static u64 ufs_bitmap_search(struct super_block *sb,
}
static void ufs_clusteracct(struct super_block * sb,
- struct ufs_cg_private_info * ucpi, unsigned blkno, int cnt)
+ struct ufs_cg_private_info * ucpi, unsigned frag, int cnt)
{
- struct ufs_sb_private_info * uspi;
+ struct ufs_sb_private_info * uspi = UFS_SB(sb)->s_uspi;
int i, start, end, forw, back;
+ unsigned blkno = ufs_fragstoblks(frag);
- uspi = UFS_SB(sb)->s_uspi;
if (uspi->s_contigsumsize <= 0)
return;
diff --git a/fs/ufs/cylinder.c b/fs/ufs/cylinder.c
index 1abe5454de47..a2813270c303 100644
--- a/fs/ufs/cylinder.c
+++ b/fs/ufs/cylinder.c
@@ -26,7 +26,7 @@
* Read cylinder group into cache. The memory space for ufs_cg_private_info
* structure is already allocated during ufs_read_super.
*/
-static void ufs_read_cylinder (struct super_block * sb,
+static bool ufs_read_cylinder(struct super_block *sb,
unsigned cgno, unsigned bitmap_nr)
{
struct ufs_sb_info * sbi = UFS_SB(sb);
@@ -46,9 +46,11 @@ static void ufs_read_cylinder (struct super_block * sb,
* We have already the first fragment of cylinder group block in buffer
*/
UCPI_UBH(ucpi)->bh[0] = sbi->s_ucg[cgno];
- for (i = 1; i < UCPI_UBH(ucpi)->count; i++)
- if (!(UCPI_UBH(ucpi)->bh[i] = sb_bread(sb, UCPI_UBH(ucpi)->fragment + i)))
+ for (i = 1; i < UCPI_UBH(ucpi)->count; i++) {
+ UCPI_UBH(ucpi)->bh[i] = sb_bread(sb, UCPI_UBH(ucpi)->fragment + i);
+ if (!UCPI_UBH(ucpi)->bh[i])
goto failed;
+ }
sbi->s_cgno[bitmap_nr] = cgno;
ucpi->c_cgx = fs32_to_cpu(sb, ucg->cg_cgx);
@@ -67,13 +69,14 @@ static void ufs_read_cylinder (struct super_block * sb,
ucpi->c_clusteroff = fs32_to_cpu(sb, ucg->cg_u.cg_44.cg_clusteroff);
ucpi->c_nclusterblks = fs32_to_cpu(sb, ucg->cg_u.cg_44.cg_nclusterblks);
UFSD("EXIT\n");
- return;
+ return true;
failed:
for (j = 1; j < i; j++)
- brelse (sbi->s_ucg[j]);
+ brelse(UCPI_UBH(ucpi)->bh[j]);
sbi->s_cgno[bitmap_nr] = UFS_CGNO_EMPTY;
ufs_error (sb, "ufs_read_cylinder", "can't read cylinder group block %u", cgno);
+ return false;
}
/*
@@ -156,15 +159,14 @@ struct ufs_cg_private_info * ufs_load_cylinder (
UFSD("EXIT (FAILED)\n");
return NULL;
}
- else {
- UFSD("EXIT\n");
- return sbi->s_ucpi[cgno];
- }
} else {
- ufs_read_cylinder (sb, cgno, cgno);
- UFSD("EXIT\n");
- return sbi->s_ucpi[cgno];
+ if (unlikely(!ufs_read_cylinder (sb, cgno, cgno))) {
+ UFSD("EXIT (FAILED)\n");
+ return NULL;
+ }
}
+ UFSD("EXIT\n");
+ return sbi->s_ucpi[cgno];
}
/*
* Cylinder group number cg is in cache but it was not last used,
@@ -195,7 +197,10 @@ struct ufs_cg_private_info * ufs_load_cylinder (
sbi->s_ucpi[j] = sbi->s_ucpi[j-1];
}
sbi->s_ucpi[0] = ucpi;
- ufs_read_cylinder (sb, cgno, 0);
+ if (unlikely(!ufs_read_cylinder (sb, cgno, 0))) {
+ UFSD("EXIT (FAILED)\n");
+ return NULL;
+ }
}
UFSD("EXIT\n");
return sbi->s_ucpi[0];
diff --git a/fs/ufs/dir.c b/fs/ufs/dir.c
index 27c85d92d1dc..88d0062cfdb9 100644
--- a/fs/ufs/dir.c
+++ b/fs/ufs/dir.c
@@ -42,18 +42,18 @@ static inline int ufs_match(struct super_block *sb, int len,
return !memcmp(name, de->d_name, len);
}
-static void ufs_commit_chunk(struct page *page, loff_t pos, unsigned len)
+static void ufs_commit_chunk(struct folio *folio, loff_t pos, unsigned len)
{
- struct address_space *mapping = page->mapping;
+ struct address_space *mapping = folio->mapping;
struct inode *dir = mapping->host;
inode_inc_iversion(dir);
- block_write_end(NULL, mapping, pos, len, len, page, NULL);
+ block_write_end(NULL, mapping, pos, len, len, folio, NULL);
if (pos+len > dir->i_size) {
i_size_write(dir, pos+len);
mark_inode_dirty(dir);
}
- unlock_page(page);
+ folio_unlock(folio);
}
static int ufs_handle_dirsync(struct inode *dir)
@@ -66,66 +66,58 @@ static int ufs_handle_dirsync(struct inode *dir)
return err;
}
-static inline void ufs_put_page(struct page *page)
-{
- kunmap(page);
- put_page(page);
-}
-
ino_t ufs_inode_by_name(struct inode *dir, const struct qstr *qstr)
{
ino_t res = 0;
struct ufs_dir_entry *de;
- struct page *page;
+ struct folio *folio;
- de = ufs_find_entry(dir, qstr, &page);
+ de = ufs_find_entry(dir, qstr, &folio);
if (de) {
res = fs32_to_cpu(dir->i_sb, de->d_ino);
- ufs_put_page(page);
+ folio_release_kmap(folio, de);
}
return res;
}
-/* Releases the page */
-void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de,
- struct page *page, struct inode *inode,
- bool update_times)
+int ufs_set_link(struct inode *dir, struct ufs_dir_entry *de,
+ struct folio *folio, struct inode *inode,
+ bool update_times)
{
- loff_t pos = page_offset(page) +
- (char *) de - (char *) page_address(page);
+ loff_t pos = folio_pos(folio) + offset_in_folio(folio, de);
unsigned len = fs16_to_cpu(dir->i_sb, de->d_reclen);
int err;
- lock_page(page);
- err = ufs_prepare_chunk(page, pos, len);
- BUG_ON(err);
+ folio_lock(folio);
+ err = ufs_prepare_chunk(folio, pos, len);
+ if (unlikely(err)) {
+ folio_unlock(folio);
+ return err;
+ }
de->d_ino = cpu_to_fs32(dir->i_sb, inode->i_ino);
ufs_set_de_type(dir->i_sb, de, inode->i_mode);
- ufs_commit_chunk(page, pos, len);
- ufs_put_page(page);
+ ufs_commit_chunk(folio, pos, len);
if (update_times)
inode_set_mtime_to_ts(dir, inode_set_ctime_current(dir));
mark_inode_dirty(dir);
- ufs_handle_dirsync(dir);
+ return ufs_handle_dirsync(dir);
}
-
-static bool ufs_check_page(struct page *page)
+static bool ufs_check_folio(struct folio *folio, char *kaddr)
{
- struct inode *dir = page->mapping->host;
+ struct inode *dir = folio->mapping->host;
struct super_block *sb = dir->i_sb;
- char *kaddr = page_address(page);
unsigned offs, rec_len;
- unsigned limit = PAGE_SIZE;
+ unsigned limit = folio_size(folio);
const unsigned chunk_mask = UFS_SB(sb)->s_uspi->s_dirblksize - 1;
struct ufs_dir_entry *p;
char *error;
- if ((dir->i_size >> PAGE_SHIFT) == page->index) {
- limit = dir->i_size & ~PAGE_MASK;
+ if (dir->i_size < folio_pos(folio) + limit) {
+ limit = offset_in_folio(folio, dir->i_size);
if (limit & chunk_mask)
goto Ebadsize;
if (!limit)
@@ -150,13 +142,13 @@ static bool ufs_check_page(struct page *page)
if (offs != limit)
goto Eend;
out:
- SetPageChecked(page);
+ folio_set_checked(folio);
return true;
/* Too bad, we had an error */
Ebadsize:
- ufs_error(sb, "ufs_check_page",
+ ufs_error(sb, __func__,
"size of directory #%lu is not a multiple of chunk size",
dir->i_ino
);
@@ -176,37 +168,40 @@ Espan:
Einumber:
error = "inode out of bounds";
bad_entry:
- ufs_error (sb, "ufs_check_page", "bad entry in directory #%lu: %s - "
- "offset=%lu, rec_len=%d, name_len=%d",
- dir->i_ino, error, (page->index<<PAGE_SHIFT)+offs,
+ ufs_error(sb, __func__, "bad entry in directory #%lu: %s - "
+ "offset=%llu, rec_len=%d, name_len=%d",
+ dir->i_ino, error, folio_pos(folio) + offs,
rec_len, ufs_get_de_namlen(sb, p));
goto fail;
Eend:
p = (struct ufs_dir_entry *)(kaddr + offs);
ufs_error(sb, __func__,
"entry in directory #%lu spans the page boundary"
- "offset=%lu",
- dir->i_ino, (page->index<<PAGE_SHIFT)+offs);
+ "offset=%llu",
+ dir->i_ino, folio_pos(folio) + offs);
fail:
- SetPageError(page);
return false;
}
-static struct page *ufs_get_page(struct inode *dir, unsigned long n)
+static void *ufs_get_folio(struct inode *dir, unsigned long n,
+ struct folio **foliop)
{
struct address_space *mapping = dir->i_mapping;
- struct page *page = read_mapping_page(mapping, n, NULL);
- if (!IS_ERR(page)) {
- kmap(page);
- if (unlikely(!PageChecked(page))) {
- if (!ufs_check_page(page))
- goto fail;
- }
+ struct folio *folio = read_mapping_folio(mapping, n, NULL);
+ void *kaddr;
+
+ if (IS_ERR(folio))
+ return ERR_CAST(folio);
+ kaddr = kmap_local_folio(folio, 0);
+ if (unlikely(!folio_test_checked(folio))) {
+ if (!ufs_check_folio(folio, kaddr))
+ goto fail;
}
- return page;
+ *foliop = folio;
+ return kaddr;
fail:
- ufs_put_page(page);
+ folio_release_kmap(folio, kaddr);
return ERR_PTR(-EIO);
}
@@ -232,17 +227,14 @@ ufs_next_entry(struct super_block *sb, struct ufs_dir_entry *p)
fs16_to_cpu(sb, p->d_reclen));
}
-struct ufs_dir_entry *ufs_dotdot(struct inode *dir, struct page **p)
+struct ufs_dir_entry *ufs_dotdot(struct inode *dir, struct folio **foliop)
{
- struct page *page = ufs_get_page(dir, 0);
- struct ufs_dir_entry *de = NULL;
+ struct ufs_dir_entry *de = ufs_get_folio(dir, 0, foliop);
- if (!IS_ERR(page)) {
- de = ufs_next_entry(dir->i_sb,
- (struct ufs_dir_entry *)page_address(page));
- *p = page;
- }
- return de;
+ if (!IS_ERR(de))
+ return ufs_next_entry(dir->i_sb, de);
+
+ return NULL;
}
/*
@@ -254,7 +246,7 @@ struct ufs_dir_entry *ufs_dotdot(struct inode *dir, struct page **p)
* Entry is guaranteed to be valid.
*/
struct ufs_dir_entry *ufs_find_entry(struct inode *dir, const struct qstr *qstr,
- struct page **res_page)
+ struct folio **foliop)
{
struct super_block *sb = dir->i_sb;
const unsigned char *name = qstr->name;
@@ -262,7 +254,6 @@ struct ufs_dir_entry *ufs_find_entry(struct inode *dir, const struct qstr *qstr,
unsigned reclen = UFS_DIR_REC_LEN(namelen);
unsigned long start, n;
unsigned long npages = dir_pages(dir);
- struct page *page = NULL;
struct ufs_inode_info *ui = UFS_I(dir);
struct ufs_dir_entry *de;
@@ -271,27 +262,23 @@ struct ufs_dir_entry *ufs_find_entry(struct inode *dir, const struct qstr *qstr,
if (npages == 0 || namelen > UFS_MAXNAMLEN)
goto out;
- /* OFFSET_CACHE */
- *res_page = NULL;
-
start = ui->i_dir_start_lookup;
if (start >= npages)
start = 0;
n = start;
do {
- char *kaddr;
- page = ufs_get_page(dir, n);
- if (!IS_ERR(page)) {
- kaddr = page_address(page);
- de = (struct ufs_dir_entry *) kaddr;
+ char *kaddr = ufs_get_folio(dir, n, foliop);
+
+ if (!IS_ERR(kaddr)) {
+ de = (struct ufs_dir_entry *)kaddr;
kaddr += ufs_last_byte(dir, n) - reclen;
while ((char *) de <= kaddr) {
if (ufs_match(sb, namelen, name, de))
goto found;
de = ufs_next_entry(sb, de);
}
- ufs_put_page(page);
+ folio_release_kmap(*foliop, kaddr);
}
if (++n >= npages)
n = 0;
@@ -300,7 +287,6 @@ out:
return NULL;
found:
- *res_page = page;
ui->i_dir_start_lookup = n;
return de;
}
@@ -317,11 +303,10 @@ int ufs_add_link(struct dentry *dentry, struct inode *inode)
unsigned reclen = UFS_DIR_REC_LEN(namelen);
const unsigned int chunk_size = UFS_SB(sb)->s_uspi->s_dirblksize;
unsigned short rec_len, name_len;
- struct page *page = NULL;
+ struct folio *folio = NULL;
struct ufs_dir_entry *de;
unsigned long npages = dir_pages(dir);
unsigned long n;
- char *kaddr;
loff_t pos;
int err;
@@ -329,21 +314,19 @@ int ufs_add_link(struct dentry *dentry, struct inode *inode)
/*
* We take care of directory expansion in the same loop.
- * This code plays outside i_size, so it locks the page
+ * This code plays outside i_size, so it locks the folio
* to protect that region.
*/
for (n = 0; n <= npages; n++) {
+ char *kaddr = ufs_get_folio(dir, n, &folio);
char *dir_end;
- page = ufs_get_page(dir, n);
- err = PTR_ERR(page);
- if (IS_ERR(page))
- goto out;
- lock_page(page);
- kaddr = page_address(page);
+ if (IS_ERR(kaddr))
+ return PTR_ERR(kaddr);
+ folio_lock(folio);
dir_end = kaddr + ufs_last_byte(dir, n);
de = (struct ufs_dir_entry *)kaddr;
- kaddr += PAGE_SIZE - reclen;
+ kaddr += folio_size(folio) - reclen;
while ((char *)de <= kaddr) {
if ((char *)de == dir_end) {
/* We hit i_size */
@@ -370,16 +353,15 @@ int ufs_add_link(struct dentry *dentry, struct inode *inode)
goto got_it;
de = (struct ufs_dir_entry *) ((char *) de + rec_len);
}
- unlock_page(page);
- ufs_put_page(page);
+ folio_unlock(folio);
+ folio_release_kmap(folio, kaddr);
}
BUG();
return -EINVAL;
got_it:
- pos = page_offset(page) +
- (char*)de - (char*)page_address(page);
- err = ufs_prepare_chunk(page, pos, rec_len);
+ pos = folio_pos(folio) + offset_in_folio(folio, de);
+ err = ufs_prepare_chunk(folio, pos, rec_len);
if (err)
goto out_unlock;
if (de->d_ino) {
@@ -396,18 +378,17 @@ got_it:
de->d_ino = cpu_to_fs32(sb, inode->i_ino);
ufs_set_de_type(sb, de, inode->i_mode);
- ufs_commit_chunk(page, pos, rec_len);
+ ufs_commit_chunk(folio, pos, rec_len);
inode_set_mtime_to_ts(dir, inode_set_ctime_current(dir));
mark_inode_dirty(dir);
err = ufs_handle_dirsync(dir);
/* OFFSET_CACHE */
out_put:
- ufs_put_page(page);
-out:
+ folio_release_kmap(folio, de);
return err;
out_unlock:
- unlock_page(page);
+ folio_unlock(folio);
goto out_put;
}
@@ -436,7 +417,7 @@ ufs_readdir(struct file *file, struct dir_context *ctx)
unsigned long n = pos >> PAGE_SHIFT;
unsigned long npages = dir_pages(inode);
unsigned chunk_mask = ~(UFS_SB(sb)->s_uspi->s_dirblksize - 1);
- bool need_revalidate = !inode_eq_iversion(inode, file->f_version);
+ bool need_revalidate = !inode_eq_iversion(inode, *(u64 *)file->private_data);
unsigned flags = UFS_SB(sb)->s_flags;
UFSD("BEGIN\n");
@@ -445,25 +426,24 @@ ufs_readdir(struct file *file, struct dir_context *ctx)
return 0;
for ( ; n < npages; n++, offset = 0) {
- char *kaddr, *limit;
struct ufs_dir_entry *de;
+ struct folio *folio;
+ char *kaddr = ufs_get_folio(inode, n, &folio);
+ char *limit;
- struct page *page = ufs_get_page(inode, n);
-
- if (IS_ERR(page)) {
+ if (IS_ERR(kaddr)) {
ufs_error(sb, __func__,
"bad page in #%lu",
inode->i_ino);
ctx->pos += PAGE_SIZE - offset;
- return -EIO;
+ return PTR_ERR(kaddr);
}
- kaddr = page_address(page);
if (unlikely(need_revalidate)) {
if (offset) {
offset = ufs_validate_entry(sb, kaddr, offset, chunk_mask);
ctx->pos = (n<<PAGE_SHIFT) + offset;
}
- file->f_version = inode_query_iversion(inode);
+ *(u64 *)file->private_data = inode_query_iversion(inode);
need_revalidate = false;
}
de = (struct ufs_dir_entry *)(kaddr+offset);
@@ -483,13 +463,13 @@ ufs_readdir(struct file *file, struct dir_context *ctx)
ufs_get_de_namlen(sb, de),
fs32_to_cpu(sb, de->d_ino),
d_type)) {
- ufs_put_page(page);
+ folio_release_kmap(folio, de);
return 0;
}
}
ctx->pos += fs16_to_cpu(sb, de->d_reclen);
}
- ufs_put_page(page);
+ folio_release_kmap(folio, kaddr);
}
return 0;
}
@@ -500,19 +480,23 @@ ufs_readdir(struct file *file, struct dir_context *ctx)
* previous entry.
*/
int ufs_delete_entry(struct inode *inode, struct ufs_dir_entry *dir,
- struct page * page)
+ struct folio *folio)
{
struct super_block *sb = inode->i_sb;
- char *kaddr = page_address(page);
- unsigned from = ((char*)dir - kaddr) & ~(UFS_SB(sb)->s_uspi->s_dirblksize - 1);
- unsigned to = ((char*)dir - kaddr) + fs16_to_cpu(sb, dir->d_reclen);
+ size_t from, to;
+ char *kaddr;
loff_t pos;
- struct ufs_dir_entry *pde = NULL;
- struct ufs_dir_entry *de = (struct ufs_dir_entry *) (kaddr + from);
+ struct ufs_dir_entry *de, *pde = NULL;
int err;
UFSD("ENTER\n");
+ from = offset_in_folio(folio, dir);
+ to = from + fs16_to_cpu(sb, dir->d_reclen);
+ kaddr = (char *)dir - from;
+ from &= ~(UFS_SB(sb)->s_uspi->s_dirblksize - 1);
+ de = (struct ufs_dir_entry *) (kaddr + from);
+
UFSD("ino %u, reclen %u, namlen %u, name %s\n",
fs32_to_cpu(sb, de->d_ino),
fs16_to_cpu(sb, de->d_reclen),
@@ -522,56 +506,52 @@ int ufs_delete_entry(struct inode *inode, struct ufs_dir_entry *dir,
if (de->d_reclen == 0) {
ufs_error(inode->i_sb, __func__,
"zero-length directory entry");
- err = -EIO;
- goto out;
+ return -EIO;
}
pde = de;
de = ufs_next_entry(sb, de);
}
if (pde)
- from = (char*)pde - (char*)page_address(page);
-
- pos = page_offset(page) + from;
- lock_page(page);
- err = ufs_prepare_chunk(page, pos, to - from);
- BUG_ON(err);
+ from = offset_in_folio(folio, pde);
+ pos = folio_pos(folio) + from;
+ folio_lock(folio);
+ err = ufs_prepare_chunk(folio, pos, to - from);
+ if (unlikely(err)) {
+ folio_unlock(folio);
+ return err;
+ }
if (pde)
pde->d_reclen = cpu_to_fs16(sb, to - from);
dir->d_ino = 0;
- ufs_commit_chunk(page, pos, to - from);
+ ufs_commit_chunk(folio, pos, to - from);
inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));
mark_inode_dirty(inode);
- err = ufs_handle_dirsync(inode);
-out:
- ufs_put_page(page);
- UFSD("EXIT\n");
- return err;
+ return ufs_handle_dirsync(inode);
}
int ufs_make_empty(struct inode * inode, struct inode *dir)
{
struct super_block * sb = dir->i_sb;
struct address_space *mapping = inode->i_mapping;
- struct page *page = grab_cache_page(mapping, 0);
+ struct folio *folio = filemap_grab_folio(mapping, 0);
const unsigned int chunk_size = UFS_SB(sb)->s_uspi->s_dirblksize;
struct ufs_dir_entry * de;
- char *base;
int err;
+ char *kaddr;
- if (!page)
- return -ENOMEM;
+ if (IS_ERR(folio))
+ return PTR_ERR(folio);
- err = ufs_prepare_chunk(page, 0, chunk_size);
+ err = ufs_prepare_chunk(folio, 0, chunk_size);
if (err) {
- unlock_page(page);
+ folio_unlock(folio);
goto fail;
}
- kmap(page);
- base = (char*)page_address(page);
- memset(base, 0, PAGE_SIZE);
+ kaddr = kmap_local_folio(folio, 0);
+ memset(kaddr, 0, folio_size(folio));
- de = (struct ufs_dir_entry *) base;
+ de = (struct ufs_dir_entry *)kaddr;
de->d_ino = cpu_to_fs32(sb, inode->i_ino);
ufs_set_de_type(sb, de, inode->i_mode);
@@ -585,12 +565,12 @@ int ufs_make_empty(struct inode * inode, struct inode *dir)
de->d_reclen = cpu_to_fs16(sb, chunk_size - UFS_DIR_REC_LEN(1));
ufs_set_de_namlen(sb, de, 2);
strcpy (de->d_name, "..");
- kunmap(page);
+ kunmap_local(kaddr);
- ufs_commit_chunk(page, 0, chunk_size);
+ ufs_commit_chunk(folio, 0, chunk_size);
err = ufs_handle_dirsync(inode);
fail:
- put_page(page);
+ folio_put(folio);
return err;
}
@@ -600,18 +580,17 @@ fail:
int ufs_empty_dir(struct inode * inode)
{
struct super_block *sb = inode->i_sb;
- struct page *page = NULL;
+ struct folio *folio;
+ char *kaddr;
unsigned long i, npages = dir_pages(inode);
for (i = 0; i < npages; i++) {
- char *kaddr;
struct ufs_dir_entry *de;
- page = ufs_get_page(inode, i);
- if (IS_ERR(page))
+ kaddr = ufs_get_folio(inode, i, &folio);
+ if (IS_ERR(kaddr))
continue;
- kaddr = page_address(page);
de = (struct ufs_dir_entry *)kaddr;
kaddr += ufs_last_byte(inode, i) - UFS_DIR_REC_LEN(1);
@@ -638,18 +617,40 @@ int ufs_empty_dir(struct inode * inode)
}
de = ufs_next_entry(sb, de);
}
- ufs_put_page(page);
+ folio_release_kmap(folio, kaddr);
}
return 1;
not_empty:
- ufs_put_page(page);
+ folio_release_kmap(folio, kaddr);
return 0;
}
+static int ufs_dir_open(struct inode *inode, struct file *file)
+{
+ file->private_data = kzalloc(sizeof(u64), GFP_KERNEL);
+ if (!file->private_data)
+ return -ENOMEM;
+ return 0;
+}
+
+static int ufs_dir_release(struct inode *inode, struct file *file)
+{
+ kfree(file->private_data);
+ return 0;
+}
+
+static loff_t ufs_dir_llseek(struct file *file, loff_t offset, int whence)
+{
+ return generic_llseek_cookie(file, offset, whence,
+ (u64 *)file->private_data);
+}
+
const struct file_operations ufs_dir_operations = {
+ .open = ufs_dir_open,
+ .release = ufs_dir_release,
.read = generic_read_dir,
.iterate_shared = ufs_readdir,
.fsync = generic_file_fsync,
- .llseek = generic_file_llseek,
+ .llseek = ufs_dir_llseek,
};
diff --git a/fs/ufs/file.c b/fs/ufs/file.c
index 6558882a89ef..487ad1fc2de6 100644
--- a/fs/ufs/file.c
+++ b/fs/ufs/file.c
@@ -42,4 +42,5 @@ const struct file_operations ufs_file_operations = {
.open = generic_file_open,
.fsync = generic_file_fsync,
.splice_read = filemap_splice_read,
+ .splice_write = iter_file_splice_write,
};
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index a7bb2e63cdde..7dc38fdef2ea 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -220,7 +220,7 @@ changed:
*/
static bool
ufs_extend_tail(struct inode *inode, u64 writes_to,
- int *err, struct page *locked_page)
+ int *err, struct folio *locked_folio)
{
struct ufs_inode_info *ufsi = UFS_I(inode);
struct super_block *sb = inode->i_sb;
@@ -239,7 +239,7 @@ ufs_extend_tail(struct inode *inode, u64 writes_to,
p = ufs_get_direct_data_ptr(uspi, ufsi, block);
tmp = ufs_new_fragments(inode, p, lastfrag, ufs_data_ptr_to_cpu(sb, p),
new_size - (lastfrag & uspi->s_fpbmask), err,
- locked_page);
+ locked_folio);
return tmp != 0;
}
@@ -250,12 +250,11 @@ ufs_extend_tail(struct inode *inode, u64 writes_to,
* @new_fragment: number of new allocated fragment(s)
* @err: we set it if something wrong
* @new: we set it if we allocate new block
- * @locked_page: for ufs_new_fragments()
+ * @locked_folio: for ufs_new_fragments()
*/
-static u64
-ufs_inode_getfrag(struct inode *inode, unsigned index,
+static u64 ufs_inode_getfrag(struct inode *inode, unsigned index,
sector_t new_fragment, int *err,
- int *new, struct page *locked_page)
+ int *new, struct folio *locked_folio)
{
struct ufs_inode_info *ufsi = UFS_I(inode);
struct super_block *sb = inode->i_sb;
@@ -264,11 +263,6 @@ ufs_inode_getfrag(struct inode *inode, unsigned index,
unsigned nfrags = uspi->s_fpb;
void *p;
- /* TODO : to be done for write support
- if ( (flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
- goto ufs2;
- */
-
p = ufs_get_direct_data_ptr(uspi, ufsi, index);
tmp = ufs_data_ptr_to_cpu(sb, p);
if (tmp)
@@ -288,7 +282,7 @@ ufs_inode_getfrag(struct inode *inode, unsigned index,
goal += uspi->s_fpb;
}
tmp = ufs_new_fragments(inode, p, ufs_blknum(new_fragment),
- goal, nfrags, err, locked_page);
+ goal, nfrags, err, locked_folio);
if (!tmp) {
*err = -ENOSPC;
@@ -303,21 +297,6 @@ ufs_inode_getfrag(struct inode *inode, unsigned index,
mark_inode_dirty(inode);
out:
return tmp + uspi->s_sbbase;
-
- /* This part : To be implemented ....
- Required only for writing, not required for READ-ONLY.
-ufs2:
-
- u2_block = ufs_fragstoblks(fragment);
- u2_blockoff = ufs_fragnum(fragment);
- p = ufsi->i_u1.u2_i_data + block;
- goal = 0;
-
-repeat2:
- tmp = fs32_to_cpu(sb, *p);
- lastfrag = ufsi->i_lastfrag;
-
- */
}
/**
@@ -329,12 +308,11 @@ repeat2:
* (block will hold this fragment and also uspi->s_fpb-1)
* @err: see ufs_inode_getfrag()
* @new: see ufs_inode_getfrag()
- * @locked_page: see ufs_inode_getfrag()
+ * @locked_folio: see ufs_inode_getfrag()
*/
-static u64
-ufs_inode_getblock(struct inode *inode, u64 ind_block,
- unsigned index, sector_t new_fragment, int *err,
- int *new, struct page *locked_page)
+static u64 ufs_inode_getblock(struct inode *inode, u64 ind_block,
+ unsigned index, sector_t new_fragment, int *err,
+ int *new, struct folio *locked_folio)
{
struct super_block *sb = inode->i_sb;
struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
@@ -369,7 +347,7 @@ ufs_inode_getblock(struct inode *inode, u64 ind_block,
else
goal = bh->b_blocknr + uspi->s_fpb;
tmp = ufs_new_fragments(inode, p, ufs_blknum(new_fragment), goal,
- uspi->s_fpb, err, locked_page);
+ uspi->s_fpb, err, locked_folio);
if (!tmp)
goto out;
@@ -434,14 +412,14 @@ static int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buff
unsigned tailfrags = lastfrag & uspi->s_fpbmask;
if (tailfrags && fragment >= lastfrag) {
if (!ufs_extend_tail(inode, fragment,
- &err, bh_result->b_page))
+ &err, bh_result->b_folio))
goto out;
}
}
if (depth == 1) {
phys64 = ufs_inode_getfrag(inode, offsets[0], fragment,
- &err, &new, bh_result->b_page);
+ &err, &new, bh_result->b_folio);
} else {
int i;
phys64 = ufs_inode_getfrag(inode, offsets[0], fragment,
@@ -450,7 +428,7 @@ static int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buff
phys64 = ufs_inode_getblock(inode, phys64, offsets[i],
fragment, &err, NULL, NULL);
phys64 = ufs_inode_getblock(inode, phys64, offsets[depth - 1],
- fragment, &err, &new, bh_result->b_page);
+ fragment, &err, &new, bh_result->b_folio);
}
out:
if (phys64) {
@@ -479,9 +457,9 @@ static int ufs_read_folio(struct file *file, struct folio *folio)
return block_read_full_folio(folio, ufs_getfrag_block);
}
-int ufs_prepare_chunk(struct page *page, loff_t pos, unsigned len)
+int ufs_prepare_chunk(struct folio *folio, loff_t pos, unsigned len)
{
- return __block_write_begin(page, pos, len, ufs_getfrag_block);
+ return __block_write_begin(folio, pos, len, ufs_getfrag_block);
}
static void ufs_truncate_blocks(struct inode *);
@@ -498,11 +476,11 @@ static void ufs_write_failed(struct address_space *mapping, loff_t to)
static int ufs_write_begin(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len,
- struct page **pagep, void **fsdata)
+ struct folio **foliop, void **fsdata)
{
int ret;
- ret = block_write_begin(mapping, pos, len, pagep, ufs_getfrag_block);
+ ret = block_write_begin(mapping, pos, len, foliop, ufs_getfrag_block);
if (unlikely(ret))
ufs_write_failed(mapping, pos + len);
@@ -511,11 +489,11 @@ static int ufs_write_begin(struct file *file, struct address_space *mapping,
static int ufs_write_end(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned copied,
- struct page *page, void *fsdata)
+ struct folio *folio, void *fsdata)
{
int ret;
- ret = generic_write_end(file, mapping, pos, len, copied, page, fsdata);
+ ret = generic_write_end(file, mapping, pos, len, copied, folio, fsdata);
if (ret < len)
ufs_write_failed(mapping, pos + len);
return ret;
@@ -898,91 +876,84 @@ static inline void free_data(struct to_free *ctx, u64 from, unsigned count)
#define DIRECT_FRAGMENT ((inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift)
+/*
+ * used only for truncation down to direct blocks.
+ */
static void ufs_trunc_direct(struct inode *inode)
{
struct ufs_inode_info *ufsi = UFS_I(inode);
- struct super_block * sb;
- struct ufs_sb_private_info * uspi;
- void *p;
- u64 frag1, frag2, frag3, frag4, block1, block2;
+ struct super_block *sb = inode->i_sb;
+ struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
+ unsigned int new_frags, old_frags;
+ unsigned int old_slot, new_slot;
+ unsigned int old_tail, new_tail;
struct to_free ctx = {.inode = inode};
- unsigned i, tmp;
UFSD("ENTER: ino %lu\n", inode->i_ino);
- sb = inode->i_sb;
- uspi = UFS_SB(sb)->s_uspi;
-
- frag1 = DIRECT_FRAGMENT;
- frag4 = min_t(u64, UFS_NDIR_FRAGMENT, ufsi->i_lastfrag);
- frag2 = ((frag1 & uspi->s_fpbmask) ? ((frag1 | uspi->s_fpbmask) + 1) : frag1);
- frag3 = frag4 & ~uspi->s_fpbmask;
- block1 = block2 = 0;
- if (frag2 > frag3) {
- frag2 = frag4;
- frag3 = frag4 = 0;
- } else if (frag2 < frag3) {
- block1 = ufs_fragstoblks (frag2);
- block2 = ufs_fragstoblks (frag3);
- }
-
- UFSD("ino %lu, frag1 %llu, frag2 %llu, block1 %llu, block2 %llu,"
- " frag3 %llu, frag4 %llu\n", inode->i_ino,
- (unsigned long long)frag1, (unsigned long long)frag2,
- (unsigned long long)block1, (unsigned long long)block2,
- (unsigned long long)frag3, (unsigned long long)frag4);
-
- if (frag1 >= frag2)
- goto next1;
+ new_frags = DIRECT_FRAGMENT;
+ // new_frags = first fragment past the new EOF
+ old_frags = min_t(u64, UFS_NDIR_FRAGMENT, ufsi->i_lastfrag);
+ // old_frags = first fragment past the old EOF or covered by indirects
- /*
- * Free first free fragments
- */
- p = ufs_get_direct_data_ptr(uspi, ufsi, ufs_fragstoblks(frag1));
- tmp = ufs_data_ptr_to_cpu(sb, p);
- if (!tmp )
- ufs_panic (sb, "ufs_trunc_direct", "internal error");
- frag2 -= frag1;
- frag1 = ufs_fragnum (frag1);
+ if (new_frags >= old_frags) // expanding - nothing to free
+ goto done;
- ufs_free_fragments(inode, tmp + frag1, frag2);
+ old_tail = ufs_fragnum(old_frags);
+ old_slot = ufs_fragstoblks(old_frags);
+ new_tail = ufs_fragnum(new_frags);
+ new_slot = ufs_fragstoblks(new_frags);
-next1:
- /*
- * Free whole blocks
- */
- for (i = block1 ; i < block2; i++) {
- p = ufs_get_direct_data_ptr(uspi, ufsi, i);
- tmp = ufs_data_ptr_to_cpu(sb, p);
+ if (old_slot == new_slot) { // old_tail > 0
+ void *p = ufs_get_direct_data_ptr(uspi, ufsi, old_slot);
+ u64 tmp = ufs_data_ptr_to_cpu(sb, p);
if (!tmp)
- continue;
- write_seqlock(&ufsi->meta_lock);
- ufs_data_ptr_clear(uspi, p);
- write_sequnlock(&ufsi->meta_lock);
+ ufs_panic(sb, __func__, "internal error");
+ if (!new_tail) {
+ write_seqlock(&ufsi->meta_lock);
+ ufs_data_ptr_clear(uspi, p);
+ write_sequnlock(&ufsi->meta_lock);
+ }
+ ufs_free_fragments(inode, tmp + new_tail, old_tail - new_tail);
+ } else {
+ unsigned int slot = new_slot;
- free_data(&ctx, tmp, uspi->s_fpb);
- }
+ if (new_tail) {
+ void *p = ufs_get_direct_data_ptr(uspi, ufsi, slot++);
+ u64 tmp = ufs_data_ptr_to_cpu(sb, p);
+ if (!tmp)
+ ufs_panic(sb, __func__, "internal error");
- free_data(&ctx, 0, 0);
+ ufs_free_fragments(inode, tmp + new_tail,
+ uspi->s_fpb - new_tail);
+ }
+ while (slot < old_slot) {
+ void *p = ufs_get_direct_data_ptr(uspi, ufsi, slot++);
+ u64 tmp = ufs_data_ptr_to_cpu(sb, p);
+ if (!tmp)
+ continue;
+ write_seqlock(&ufsi->meta_lock);
+ ufs_data_ptr_clear(uspi, p);
+ write_sequnlock(&ufsi->meta_lock);
- if (frag3 >= frag4)
- goto next3;
+ free_data(&ctx, tmp, uspi->s_fpb);
+ }
- /*
- * Free last free fragments
- */
- p = ufs_get_direct_data_ptr(uspi, ufsi, ufs_fragstoblks(frag3));
- tmp = ufs_data_ptr_to_cpu(sb, p);
- if (!tmp )
- ufs_panic(sb, "ufs_truncate_direct", "internal error");
- frag4 = ufs_fragnum (frag4);
- write_seqlock(&ufsi->meta_lock);
- ufs_data_ptr_clear(uspi, p);
- write_sequnlock(&ufsi->meta_lock);
+ free_data(&ctx, 0, 0);
- ufs_free_fragments (inode, tmp, frag4);
- next3:
+ if (old_tail) {
+ void *p = ufs_get_direct_data_ptr(uspi, ufsi, slot);
+ u64 tmp = ufs_data_ptr_to_cpu(sb, p);
+ if (!tmp)
+ ufs_panic(sb, __func__, "internal error");
+ write_seqlock(&ufsi->meta_lock);
+ ufs_data_ptr_clear(uspi, p);
+ write_sequnlock(&ufsi->meta_lock);
+ ufs_free_fragments(inode, tmp, old_tail);
+ }
+ }
+done:
UFSD("EXIT: ino %lu\n", inode->i_ino);
}
diff --git a/fs/ufs/namei.c b/fs/ufs/namei.c
index 9cad29463791..5b3c85c93242 100644
--- a/fs/ufs/namei.c
+++ b/fs/ufs/namei.c
@@ -166,8 +166,8 @@ static int ufs_link (struct dentry * old_dentry, struct inode * dir,
return error;
}
-static int ufs_mkdir(struct mnt_idmap * idmap, struct inode * dir,
- struct dentry * dentry, umode_t mode)
+static struct dentry *ufs_mkdir(struct mnt_idmap * idmap, struct inode * dir,
+ struct dentry * dentry, umode_t mode)
{
struct inode * inode;
int err;
@@ -194,7 +194,7 @@ static int ufs_mkdir(struct mnt_idmap * idmap, struct inode * dir,
goto out_fail;
d_instantiate_new(dentry, inode);
- return 0;
+ return NULL;
out_fail:
inode_dec_link_count(inode);
@@ -202,28 +202,26 @@ out_fail:
discard_new_inode(inode);
out_dir:
inode_dec_link_count(dir);
- return err;
+ return ERR_PTR(err);
}
static int ufs_unlink(struct inode *dir, struct dentry *dentry)
{
struct inode * inode = d_inode(dentry);
struct ufs_dir_entry *de;
- struct page *page;
- int err = -ENOENT;
+ struct folio *folio;
+ int err;
- de = ufs_find_entry(dir, &dentry->d_name, &page);
+ de = ufs_find_entry(dir, &dentry->d_name, &folio);
if (!de)
- goto out;
-
- err = ufs_delete_entry(dir, de, page);
- if (err)
- goto out;
+ return -ENOENT;
- inode_set_ctime_to_ts(inode, inode_get_ctime(dir));
- inode_dec_link_count(inode);
- err = 0;
-out:
+ err = ufs_delete_entry(dir, de, folio);
+ if (!err) {
+ inode_set_ctime_to_ts(inode, inode_get_ctime(dir));
+ inode_dec_link_count(inode);
+ }
+ folio_release_kmap(folio, de);
return err;
}
@@ -249,28 +247,28 @@ static int ufs_rename(struct mnt_idmap *idmap, struct inode *old_dir,
{
struct inode *old_inode = d_inode(old_dentry);
struct inode *new_inode = d_inode(new_dentry);
- struct page *dir_page = NULL;
+ struct folio *dir_folio = NULL;
struct ufs_dir_entry * dir_de = NULL;
- struct page *old_page;
+ struct folio *old_folio;
struct ufs_dir_entry *old_de;
- int err = -ENOENT;
+ int err;
if (flags & ~RENAME_NOREPLACE)
return -EINVAL;
- old_de = ufs_find_entry(old_dir, &old_dentry->d_name, &old_page);
+ old_de = ufs_find_entry(old_dir, &old_dentry->d_name, &old_folio);
if (!old_de)
- goto out;
+ return -ENOENT;
if (S_ISDIR(old_inode->i_mode)) {
err = -EIO;
- dir_de = ufs_dotdot(old_inode, &dir_page);
+ dir_de = ufs_dotdot(old_inode, &dir_folio);
if (!dir_de)
goto out_old;
}
if (new_inode) {
- struct page *new_page;
+ struct folio *new_folio;
struct ufs_dir_entry *new_de;
err = -ENOTEMPTY;
@@ -278,10 +276,13 @@ static int ufs_rename(struct mnt_idmap *idmap, struct inode *old_dir,
goto out_dir;
err = -ENOENT;
- new_de = ufs_find_entry(new_dir, &new_dentry->d_name, &new_page);
+ new_de = ufs_find_entry(new_dir, &new_dentry->d_name, &new_folio);
if (!new_de)
goto out_dir;
- ufs_set_link(new_dir, new_de, new_page, old_inode, 1);
+ err = ufs_set_link(new_dir, new_de, new_folio, old_inode, 1);
+ folio_release_kmap(new_folio, new_de);
+ if (err)
+ goto out_dir;
inode_set_ctime_current(new_inode);
if (dir_de)
drop_nlink(new_inode);
@@ -299,31 +300,20 @@ static int ufs_rename(struct mnt_idmap *idmap, struct inode *old_dir,
* rename.
*/
inode_set_ctime_current(old_inode);
-
- ufs_delete_entry(old_dir, old_de, old_page);
mark_inode_dirty(old_inode);
- if (dir_de) {
+ err = ufs_delete_entry(old_dir, old_de, old_folio);
+ if (!err && dir_de) {
if (old_dir != new_dir)
- ufs_set_link(old_inode, dir_de, dir_page, new_dir, 0);
- else {
- kunmap(dir_page);
- put_page(dir_page);
- }
+ err = ufs_set_link(old_inode, dir_de, dir_folio,
+ new_dir, 0);
inode_dec_link_count(old_dir);
}
- return 0;
-
-
out_dir:
- if (dir_de) {
- kunmap(dir_page);
- put_page(dir_page);
- }
+ if (dir_de)
+ folio_release_kmap(dir_folio, dir_de);
out_old:
- kunmap(old_page);
- put_page(old_page);
-out:
+ folio_release_kmap(old_folio, old_de);
return err;
}
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 44666afc6209..eea718ac66b4 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -83,11 +83,11 @@
#include <linux/blkdev.h>
#include <linux/backing-dev.h>
#include <linux/init.h>
-#include <linux/parser.h>
+#include <linux/fs_context.h>
+#include <linux/fs_parser.h>
#include <linux/buffer_head.h>
#include <linux/vfs.h>
#include <linux/log2.h>
-#include <linux/mount.h>
#include <linux/seq_file.h>
#include <linux/iversion.h>
@@ -289,7 +289,7 @@ void ufs_error (struct super_block * sb, const char * function,
va_start(args, fmt);
vaf.fmt = fmt;
vaf.va = &args;
- switch (UFS_SB(sb)->s_mount_opt & UFS_MOUNT_ONERROR) {
+ switch (UFS_SB(sb)->s_on_err) {
case UFS_MOUNT_ONERROR_PANIC:
panic("panic (device %s): %s: %pV\n",
sb->s_id, function, &vaf);
@@ -342,124 +342,74 @@ void ufs_warning (struct super_block * sb, const char * function,
va_end(args);
}
-enum {
- Opt_type_old = UFS_MOUNT_UFSTYPE_OLD,
- Opt_type_sunx86 = UFS_MOUNT_UFSTYPE_SUNx86,
- Opt_type_sun = UFS_MOUNT_UFSTYPE_SUN,
- Opt_type_sunos = UFS_MOUNT_UFSTYPE_SUNOS,
- Opt_type_44bsd = UFS_MOUNT_UFSTYPE_44BSD,
- Opt_type_ufs2 = UFS_MOUNT_UFSTYPE_UFS2,
- Opt_type_hp = UFS_MOUNT_UFSTYPE_HP,
- Opt_type_nextstepcd = UFS_MOUNT_UFSTYPE_NEXTSTEP_CD,
- Opt_type_nextstep = UFS_MOUNT_UFSTYPE_NEXTSTEP,
- Opt_type_openstep = UFS_MOUNT_UFSTYPE_OPENSTEP,
- Opt_onerror_panic = UFS_MOUNT_ONERROR_PANIC,
- Opt_onerror_lock = UFS_MOUNT_ONERROR_LOCK,
- Opt_onerror_umount = UFS_MOUNT_ONERROR_UMOUNT,
- Opt_onerror_repair = UFS_MOUNT_ONERROR_REPAIR,
- Opt_err
+enum { Opt_type, Opt_onerror };
+
+static const struct constant_table ufs_param_ufstype[] = {
+ {"old", UFS_MOUNT_UFSTYPE_OLD},
+ {"sunx86", UFS_MOUNT_UFSTYPE_SUNx86},
+ {"sun", UFS_MOUNT_UFSTYPE_SUN},
+ {"sunos", UFS_MOUNT_UFSTYPE_SUNOS},
+ {"44bsd", UFS_MOUNT_UFSTYPE_44BSD},
+ {"ufs2", UFS_MOUNT_UFSTYPE_UFS2},
+ {"5xbsd", UFS_MOUNT_UFSTYPE_UFS2},
+ {"hp", UFS_MOUNT_UFSTYPE_HP},
+ {"nextstep-cd", UFS_MOUNT_UFSTYPE_NEXTSTEP_CD},
+ {"nextstep", UFS_MOUNT_UFSTYPE_NEXTSTEP},
+ {"openstep", UFS_MOUNT_UFSTYPE_OPENSTEP},
+ {}
};
-static const match_table_t tokens = {
- {Opt_type_old, "ufstype=old"},
- {Opt_type_sunx86, "ufstype=sunx86"},
- {Opt_type_sun, "ufstype=sun"},
- {Opt_type_sunos, "ufstype=sunos"},
- {Opt_type_44bsd, "ufstype=44bsd"},
- {Opt_type_ufs2, "ufstype=ufs2"},
- {Opt_type_ufs2, "ufstype=5xbsd"},
- {Opt_type_hp, "ufstype=hp"},
- {Opt_type_nextstepcd, "ufstype=nextstep-cd"},
- {Opt_type_nextstep, "ufstype=nextstep"},
- {Opt_type_openstep, "ufstype=openstep"},
-/*end of possible ufs types */
- {Opt_onerror_panic, "onerror=panic"},
- {Opt_onerror_lock, "onerror=lock"},
- {Opt_onerror_umount, "onerror=umount"},
- {Opt_onerror_repair, "onerror=repair"},
- {Opt_err, NULL}
+static const struct constant_table ufs_param_onerror[] = {
+ {"panic", UFS_MOUNT_ONERROR_PANIC},
+ {"lock", UFS_MOUNT_ONERROR_LOCK},
+ {"umount", UFS_MOUNT_ONERROR_UMOUNT},
+ {"repair", UFS_MOUNT_ONERROR_REPAIR},
+ {}
};
-static int ufs_parse_options (char * options, unsigned * mount_options)
+static const struct fs_parameter_spec ufs_param_spec[] = {
+ fsparam_enum ("ufstype", Opt_type, ufs_param_ufstype),
+ fsparam_enum ("onerror", Opt_onerror, ufs_param_onerror),
+ {}
+};
+
+struct ufs_fs_context {
+ unsigned int flavour, on_err;
+};
+
+static int ufs_parse_param(struct fs_context *fc, struct fs_parameter *param)
{
- char * p;
-
+ struct ufs_fs_context *ctx = fc->fs_private;
+ struct fs_parse_result result;
+ int opt;
+
UFSD("ENTER\n");
-
- if (!options)
- return 1;
- while ((p = strsep(&options, ",")) != NULL) {
- substring_t args[MAX_OPT_ARGS];
- int token;
- if (!*p)
- continue;
+ opt = fs_parse(fc, ufs_param_spec, param, &result);
+ if (opt < 0)
+ return opt;
- token = match_token(p, tokens, args);
- switch (token) {
- case Opt_type_old:
- ufs_clear_opt (*mount_options, UFSTYPE);
- ufs_set_opt (*mount_options, UFSTYPE_OLD);
- break;
- case Opt_type_sunx86:
- ufs_clear_opt (*mount_options, UFSTYPE);
- ufs_set_opt (*mount_options, UFSTYPE_SUNx86);
- break;
- case Opt_type_sun:
- ufs_clear_opt (*mount_options, UFSTYPE);
- ufs_set_opt (*mount_options, UFSTYPE_SUN);
- break;
- case Opt_type_sunos:
- ufs_clear_opt(*mount_options, UFSTYPE);
- ufs_set_opt(*mount_options, UFSTYPE_SUNOS);
- break;
- case Opt_type_44bsd:
- ufs_clear_opt (*mount_options, UFSTYPE);
- ufs_set_opt (*mount_options, UFSTYPE_44BSD);
- break;
- case Opt_type_ufs2:
- ufs_clear_opt(*mount_options, UFSTYPE);
- ufs_set_opt(*mount_options, UFSTYPE_UFS2);
- break;
- case Opt_type_hp:
- ufs_clear_opt (*mount_options, UFSTYPE);
- ufs_set_opt (*mount_options, UFSTYPE_HP);
- break;
- case Opt_type_nextstepcd:
- ufs_clear_opt (*mount_options, UFSTYPE);
- ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP_CD);
- break;
- case Opt_type_nextstep:
- ufs_clear_opt (*mount_options, UFSTYPE);
- ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP);
- break;
- case Opt_type_openstep:
- ufs_clear_opt (*mount_options, UFSTYPE);
- ufs_set_opt (*mount_options, UFSTYPE_OPENSTEP);
- break;
- case Opt_onerror_panic:
- ufs_clear_opt (*mount_options, ONERROR);
- ufs_set_opt (*mount_options, ONERROR_PANIC);
- break;
- case Opt_onerror_lock:
- ufs_clear_opt (*mount_options, ONERROR);
- ufs_set_opt (*mount_options, ONERROR_LOCK);
- break;
- case Opt_onerror_umount:
- ufs_clear_opt (*mount_options, ONERROR);
- ufs_set_opt (*mount_options, ONERROR_UMOUNT);
- break;
- case Opt_onerror_repair:
- pr_err("Unable to do repair on error, will lock lock instead\n");
- ufs_clear_opt (*mount_options, ONERROR);
- ufs_set_opt (*mount_options, ONERROR_REPAIR);
- break;
- default:
- pr_err("Invalid option: \"%s\" or missing value\n", p);
+ switch (opt) {
+ case Opt_type:
+ if (ctx->flavour == result.uint_32) /* no-op */
return 0;
+ if (fc->purpose == FS_CONTEXT_FOR_RECONFIGURE) {
+ pr_err("ufstype can't be changed during remount\n");
+ return -EINVAL;
+ }
+ if (!ctx->flavour) {
+ pr_err("conflicting ufstype options\n");
+ return -EINVAL;
}
+ ctx->flavour = result.uint_32;
+ break;
+ case Opt_onerror:
+ ctx->on_err = result.uint_32;
+ break;
+ default:
+ return -EINVAL;
}
- return 1;
+ return 0;
}
/*
@@ -474,7 +424,7 @@ static void ufs_setup_cstotal(struct super_block *sb)
struct ufs_super_block_first *usb1;
struct ufs_super_block_second *usb2;
struct ufs_super_block_third *usb3;
- unsigned mtype = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE;
+ unsigned mtype = sbi->s_flavour;
UFSD("ENTER, mtype=%u\n", mtype);
usb1 = ubh_get_usb_first(uspi);
@@ -505,7 +455,6 @@ static int ufs_read_cylinder_structures(struct super_block *sb)
{
struct ufs_sb_info *sbi = UFS_SB(sb);
struct ufs_sb_private_info *uspi = sbi->s_uspi;
- struct ufs_buffer_head * ubh;
unsigned char * base, * space;
unsigned size, blks, i;
@@ -521,21 +470,13 @@ static int ufs_read_cylinder_structures(struct super_block *sb)
if (!base)
goto failed;
sbi->s_csp = (struct ufs_csum *)space;
- for (i = 0; i < blks; i += uspi->s_fpb) {
- size = uspi->s_bsize;
- if (i + uspi->s_fpb > blks)
- size = (blks - i) * uspi->s_fsize;
-
- ubh = ubh_bread(sb, uspi->s_csaddr + i, size);
-
- if (!ubh)
+ for (i = 0; i < blks; i++) {
+ struct buffer_head *bh = sb_bread(sb, uspi->s_csaddr + i);
+ if (!bh)
goto failed;
-
- ubh_ubhcpymem (space, ubh, size);
-
- space += size;
- ubh_brelse (ubh);
- ubh = NULL;
+ memcpy(space, bh->b_data, uspi->s_fsize);
+ space += uspi->s_fsize;
+ brelse (bh);
}
/*
@@ -589,7 +530,7 @@ failed:
*/
static void ufs_put_cstotal(struct super_block *sb)
{
- unsigned mtype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE;
+ unsigned mtype = UFS_SB(sb)->s_flavour;
struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
struct ufs_super_block_first *usb1;
struct ufs_super_block_second *usb2;
@@ -645,7 +586,6 @@ static void ufs_put_super_internal(struct super_block *sb)
{
struct ufs_sb_info *sbi = UFS_SB(sb);
struct ufs_sb_private_info *uspi = sbi->s_uspi;
- struct ufs_buffer_head * ubh;
unsigned char * base, * space;
unsigned blks, size, i;
@@ -656,18 +596,17 @@ static void ufs_put_super_internal(struct super_block *sb)
size = uspi->s_cssize;
blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift;
base = space = (char*) sbi->s_csp;
- for (i = 0; i < blks; i += uspi->s_fpb) {
- size = uspi->s_bsize;
- if (i + uspi->s_fpb > blks)
- size = (blks - i) * uspi->s_fsize;
-
- ubh = ubh_bread(sb, uspi->s_csaddr + i, size);
-
- ubh_memcpyubh (ubh, space, size);
- space += size;
- ubh_mark_buffer_uptodate (ubh, 1);
- ubh_mark_buffer_dirty (ubh);
- ubh_brelse (ubh);
+ for (i = 0; i < blks; i++, space += uspi->s_fsize) {
+ struct buffer_head *bh = sb_bread(sb, uspi->s_csaddr + i);
+
+ if (unlikely(!bh)) { // better than an oops...
+ ufs_panic(sb, __func__,
+ "can't write part of cylinder group summary");
+ continue;
+ }
+ memcpy(bh->b_data, space, uspi->s_fsize);
+ mark_buffer_dirty(bh);
+ brelse(bh);
}
for (i = 0; i < sbi->s_cg_loaded; i++) {
ufs_put_cylinder (sb, i);
@@ -775,8 +714,10 @@ static u64 ufs_max_bytes(struct super_block *sb)
return res << uspi->s_bshift;
}
-static int ufs_fill_super(struct super_block *sb, void *data, int silent)
+static int ufs_fill_super(struct super_block *sb, struct fs_context *fc)
{
+ struct ufs_fs_context *ctx = fc->fs_private;
+ int silent = fc->sb_flags & SB_SILENT;
struct ufs_sb_info * sbi;
struct ufs_sb_private_info * uspi;
struct ufs_super_block_first * usb1;
@@ -814,24 +755,18 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
mutex_init(&sbi->s_lock);
spin_lock_init(&sbi->work_lock);
INIT_DELAYED_WORK(&sbi->sync_work, delayed_sync_fs);
- /*
- * Set default mount options
- * Parse mount options
- */
- sbi->s_mount_opt = 0;
- ufs_set_opt (sbi->s_mount_opt, ONERROR_LOCK);
- if (!ufs_parse_options ((char *) data, &sbi->s_mount_opt)) {
- pr_err("wrong mount options\n");
- goto failed;
- }
- if (!(sbi->s_mount_opt & UFS_MOUNT_UFSTYPE)) {
+
+ sbi->s_flavour = ctx->flavour;
+ sbi->s_on_err = ctx->on_err;
+
+ if (!sbi->s_flavour) {
if (!silent)
pr_err("You didn't specify the type of your ufs filesystem\n\n"
"mount -t ufs -o ufstype="
"sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...\n\n"
">>>WARNING<<< Wrong ufstype may corrupt your filesystem, "
"default is ufstype=old\n");
- ufs_set_opt (sbi->s_mount_opt, UFSTYPE_OLD);
+ sbi->s_flavour = UFS_MOUNT_UFSTYPE_OLD;
}
uspi = kzalloc(sizeof(struct ufs_sb_private_info), GFP_KERNEL);
@@ -847,7 +782,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
sb->s_time_min = S32_MIN;
sb->s_time_max = S32_MAX;
- switch (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) {
+ switch (sbi->s_flavour) {
case UFS_MOUNT_UFSTYPE_44BSD:
UFSD("ufstype=44bsd\n");
uspi->s_fsize = block_size = 512;
@@ -1046,9 +981,9 @@ again:
goto magic_found;
}
- if ((((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP)
- || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP_CD)
- || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_OPENSTEP))
+ if ((sbi->s_flavour == UFS_MOUNT_UFSTYPE_NEXTSTEP
+ || sbi->s_flavour == UFS_MOUNT_UFSTYPE_NEXTSTEP_CD
+ || sbi->s_flavour == UFS_MOUNT_UFSTYPE_OPENSTEP)
&& uspi->s_sbbase < 256) {
ubh_brelse_uspi(uspi);
ubh = NULL;
@@ -1240,11 +1175,7 @@ magic_found:
else
uspi->s_apbshift = uspi->s_bshift - 2;
- uspi->s_2apbshift = uspi->s_apbshift * 2;
- uspi->s_3apbshift = uspi->s_apbshift * 3;
uspi->s_apb = 1 << uspi->s_apbshift;
- uspi->s_2apb = 1 << uspi->s_2apbshift;
- uspi->s_3apb = 1 << uspi->s_3apbshift;
uspi->s_apbmask = uspi->s_apb - 1;
uspi->s_nspfshift = uspi->s_fshift - UFS_SECTOR_BITS;
uspi->s_nspb = uspi->s_nspf << uspi->s_fpbshift;
@@ -1252,8 +1183,8 @@ magic_found:
uspi->s_bpf = uspi->s_fsize << 3;
uspi->s_bpfshift = uspi->s_fshift + 3;
uspi->s_bpfmask = uspi->s_bpf - 1;
- if ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_44BSD ||
- (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_UFS2)
+ if (sbi->s_flavour == UFS_MOUNT_UFSTYPE_44BSD ||
+ sbi->s_flavour == UFS_MOUNT_UFSTYPE_UFS2)
uspi->s_maxsymlinklen =
fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen);
@@ -1305,13 +1236,15 @@ failed_nomem:
return -ENOMEM;
}
-static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
+static int ufs_reconfigure(struct fs_context *fc)
{
struct ufs_sb_private_info * uspi;
struct ufs_super_block_first * usb1;
struct ufs_super_block_third * usb3;
- unsigned new_mount_opt, ufstype;
- unsigned flags;
+ struct ufs_fs_context *ctx = fc->fs_private;
+ struct super_block *sb = fc->root->d_sb;
+ unsigned int ufstype;
+ unsigned int flags;
sync_filesystem(sb);
mutex_lock(&UFS_SB(sb)->s_lock);
@@ -1320,27 +1253,10 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
usb1 = ubh_get_usb_first(uspi);
usb3 = ubh_get_usb_third(uspi);
- /*
- * Allow the "check" option to be passed as a remount option.
- * It is not possible to change ufstype option during remount
- */
- ufstype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE;
- new_mount_opt = 0;
- ufs_set_opt (new_mount_opt, ONERROR_LOCK);
- if (!ufs_parse_options (data, &new_mount_opt)) {
- mutex_unlock(&UFS_SB(sb)->s_lock);
- return -EINVAL;
- }
- if (!(new_mount_opt & UFS_MOUNT_UFSTYPE)) {
- new_mount_opt |= ufstype;
- } else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) {
- pr_err("ufstype can't be changed during remount\n");
- mutex_unlock(&UFS_SB(sb)->s_lock);
- return -EINVAL;
- }
+ ufstype = UFS_SB(sb)->s_flavour;
- if ((bool)(*mount_flags & SB_RDONLY) == sb_rdonly(sb)) {
- UFS_SB(sb)->s_mount_opt = new_mount_opt;
+ if ((bool)(fc->sb_flags & SB_RDONLY) == sb_rdonly(sb)) {
+ UFS_SB(sb)->s_on_err = ctx->on_err;
mutex_unlock(&UFS_SB(sb)->s_lock);
return 0;
}
@@ -1348,7 +1264,7 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
/*
* fs was mouted as rw, remounting ro
*/
- if (*mount_flags & SB_RDONLY) {
+ if (fc->sb_flags & SB_RDONLY) {
ufs_put_super_internal(sb);
usb1->fs_time = ufs_get_seconds(sb);
if ((flags & UFS_ST_MASK) == UFS_ST_SUN
@@ -1384,7 +1300,7 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
sb->s_flags &= ~SB_RDONLY;
#endif
}
- UFS_SB(sb)->s_mount_opt = new_mount_opt;
+ UFS_SB(sb)->s_on_err = ctx->on_err;
mutex_unlock(&UFS_SB(sb)->s_lock);
return 0;
}
@@ -1392,19 +1308,19 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
static int ufs_show_options(struct seq_file *seq, struct dentry *root)
{
struct ufs_sb_info *sbi = UFS_SB(root->d_sb);
- unsigned mval = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE;
- const struct match_token *tp = tokens;
+ unsigned mval = sbi->s_flavour;
+ const struct constant_table *tp;
- while (tp->token != Opt_onerror_panic && tp->token != mval)
+ tp = ufs_param_ufstype;
+ while (tp->value && tp->value != mval)
++tp;
- BUG_ON(tp->token == Opt_onerror_panic);
- seq_printf(seq, ",%s", tp->pattern);
+ seq_printf(seq, ",ufstype=%s", tp->name);
- mval = sbi->s_mount_opt & UFS_MOUNT_ONERROR;
- while (tp->token != Opt_err && tp->token != mval)
+ tp = ufs_param_onerror;
+ mval = sbi->s_on_err;
+ while (tp->value && tp->value != mval)
++tp;
- BUG_ON(tp->token == Opt_err);
- seq_printf(seq, ",%s", tp->pattern);
+ seq_printf(seq, ",onerror=%s", tp->name);
return 0;
}
@@ -1498,21 +1414,57 @@ static const struct super_operations ufs_super_ops = {
.put_super = ufs_put_super,
.sync_fs = ufs_sync_fs,
.statfs = ufs_statfs,
- .remount_fs = ufs_remount,
.show_options = ufs_show_options,
};
-static struct dentry *ufs_mount(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data)
+static int ufs_get_tree(struct fs_context *fc)
+{
+ return get_tree_bdev(fc, ufs_fill_super);
+}
+
+static void ufs_free_fc(struct fs_context *fc)
+{
+ kfree(fc->fs_private);
+}
+
+static const struct fs_context_operations ufs_context_ops = {
+ .parse_param = ufs_parse_param,
+ .get_tree = ufs_get_tree,
+ .reconfigure = ufs_reconfigure,
+ .free = ufs_free_fc,
+};
+
+static int ufs_init_fs_context(struct fs_context *fc)
{
- return mount_bdev(fs_type, flags, dev_name, data, ufs_fill_super);
+ struct ufs_fs_context *ctx;
+
+ ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ if (fc->purpose == FS_CONTEXT_FOR_RECONFIGURE) {
+ struct super_block *sb = fc->root->d_sb;
+ struct ufs_sb_info *sbi = UFS_SB(sb);
+
+ ctx->flavour = sbi->s_flavour;
+ ctx->on_err = sbi->s_on_err;
+ } else {
+ ctx->flavour = 0;
+ ctx->on_err = UFS_MOUNT_ONERROR_LOCK;
+ }
+
+ fc->fs_private = ctx;
+ fc->ops = &ufs_context_ops;
+
+ return 0;
}
static struct file_system_type ufs_fs_type = {
.owner = THIS_MODULE,
.name = "ufs",
- .mount = ufs_mount,
.kill_sb = kill_block_super,
+ .init_fs_context = ufs_init_fs_context,
+ .parameters = ufs_param_spec,
.fs_flags = FS_REQUIRES_DEV,
};
MODULE_ALIAS_FS("ufs");
@@ -1540,4 +1492,5 @@ static void __exit exit_ufs_fs(void)
module_init(init_ufs_fs)
module_exit(exit_ufs_fs)
+MODULE_DESCRIPTION("UFS Filesystem");
MODULE_LICENSE("GPL");
diff --git a/fs/ufs/ufs.h b/fs/ufs/ufs.h
index 6b499180643b..788e025056b2 100644
--- a/fs/ufs/ufs.h
+++ b/fs/ufs/ufs.h
@@ -24,7 +24,8 @@ struct ufs_sb_info {
struct ufs_cg_private_info * s_ucpi[UFS_MAX_GROUP_LOADED];
unsigned s_cgno[UFS_MAX_GROUP_LOADED];
unsigned short s_cg_loaded;
- unsigned s_mount_opt;
+ unsigned s_flavour;
+ unsigned s_on_err;
struct super_block *sb;
int work_queued; /* non-zero if the delayed work is queued */
struct delayed_work sync_work; /* FS sync delayed work */
@@ -52,13 +53,11 @@ struct ufs_inode_info {
};
/* mount options */
-#define UFS_MOUNT_ONERROR 0x0000000F
#define UFS_MOUNT_ONERROR_PANIC 0x00000001
#define UFS_MOUNT_ONERROR_LOCK 0x00000002
#define UFS_MOUNT_ONERROR_UMOUNT 0x00000004
#define UFS_MOUNT_ONERROR_REPAIR 0x00000008
-#define UFS_MOUNT_UFSTYPE 0x0000FFF0
#define UFS_MOUNT_UFSTYPE_OLD 0x00000010
#define UFS_MOUNT_UFSTYPE_44BSD 0x00000020
#define UFS_MOUNT_UFSTYPE_SUN 0x00000040
@@ -70,10 +69,6 @@ struct ufs_inode_info {
#define UFS_MOUNT_UFSTYPE_UFS2 0x00001000
#define UFS_MOUNT_UFSTYPE_SUNOS 0x00002000
-#define ufs_clear_opt(o,opt) o &= ~UFS_MOUNT_##opt
-#define ufs_set_opt(o,opt) o |= UFS_MOUNT_##opt
-#define ufs_test_opt(o,opt) ((o) & UFS_MOUNT_##opt)
-
/*
* Debug code
*/
@@ -88,10 +83,10 @@ struct ufs_inode_info {
#endif
/* balloc.c */
-extern void ufs_free_fragments (struct inode *, u64, unsigned);
-extern void ufs_free_blocks (struct inode *, u64, unsigned);
-extern u64 ufs_new_fragments(struct inode *, void *, u64, u64,
- unsigned, int *, struct page *);
+void ufs_free_fragments (struct inode *, u64 fragment, unsigned count);
+void ufs_free_blocks (struct inode *, u64 fragment, unsigned count);
+u64 ufs_new_fragments(struct inode *, void *, u64 fragment, u64 goal,
+ unsigned count, int *err, struct folio *);
/* cylinder.c */
extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned);
@@ -99,15 +94,17 @@ extern void ufs_put_cylinder (struct super_block *, unsigned);
/* dir.c */
extern const struct inode_operations ufs_dir_inode_operations;
-extern int ufs_add_link (struct dentry *, struct inode *);
-extern ino_t ufs_inode_by_name(struct inode *, const struct qstr *);
-extern int ufs_make_empty(struct inode *, struct inode *);
-extern struct ufs_dir_entry *ufs_find_entry(struct inode *, const struct qstr *, struct page **);
-extern int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct page *);
-extern int ufs_empty_dir (struct inode *);
-extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **);
-extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de,
- struct page *page, struct inode *inode, bool update_times);
+
+int ufs_add_link(struct dentry *, struct inode *);
+ino_t ufs_inode_by_name(struct inode *, const struct qstr *);
+int ufs_make_empty(struct inode *, struct inode *);
+struct ufs_dir_entry *ufs_find_entry(struct inode *, const struct qstr *,
+ struct folio **);
+int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct folio *);
+int ufs_empty_dir(struct inode *);
+struct ufs_dir_entry *ufs_dotdot(struct inode *, struct folio **);
+int ufs_set_link(struct inode *dir, struct ufs_dir_entry *de,
+ struct folio *folio, struct inode *inode, bool update_times);
/* file.c */
extern const struct inode_operations ufs_file_inode_operations;
diff --git a/fs/ufs/ufs_fs.h b/fs/ufs/ufs_fs.h
index ef9ead44776a..0905f9a16b91 100644
--- a/fs/ufs/ufs_fs.h
+++ b/fs/ufs/ufs_fs.h
@@ -775,12 +775,8 @@ struct ufs_sb_private_info {
__u32 s_fpbmask; /* fragments per block mask */
__u32 s_apb; /* address per block */
- __u32 s_2apb; /* address per block^2 */
- __u32 s_3apb; /* address per block^3 */
__u32 s_apbmask; /* address per block mask */
__u32 s_apbshift; /* address per block shift */
- __u32 s_2apbshift; /* address per block shift * 2 */
- __u32 s_3apbshift; /* address per block shift * 3 */
__u32 s_nspfshift; /* number of sector per fragment shift */
__u32 s_nspb; /* number of sector per block */
__u32 s_inopf; /* inodes per fragment */
diff --git a/fs/ufs/util.c b/fs/ufs/util.c
index 2acf191eb89e..f0e906ab4ddd 100644
--- a/fs/ufs/util.c
+++ b/fs/ufs/util.c
@@ -99,20 +99,6 @@ void ubh_mark_buffer_dirty (struct ufs_buffer_head * ubh)
mark_buffer_dirty (ubh->bh[i]);
}
-void ubh_mark_buffer_uptodate (struct ufs_buffer_head * ubh, int flag)
-{
- unsigned i;
- if (!ubh)
- return;
- if (flag) {
- for ( i = 0; i < ubh->count; i++ )
- set_buffer_uptodate (ubh->bh[i]);
- } else {
- for ( i = 0; i < ubh->count; i++ )
- clear_buffer_uptodate (ubh->bh[i]);
- }
-}
-
void ubh_sync_block(struct ufs_buffer_head *ubh)
{
if (ubh) {
@@ -146,38 +132,6 @@ int ubh_buffer_dirty (struct ufs_buffer_head * ubh)
return result;
}
-void _ubh_ubhcpymem_(struct ufs_sb_private_info * uspi,
- unsigned char * mem, struct ufs_buffer_head * ubh, unsigned size)
-{
- unsigned len, bhno;
- if (size > (ubh->count << uspi->s_fshift))
- size = ubh->count << uspi->s_fshift;
- bhno = 0;
- while (size) {
- len = min_t(unsigned int, size, uspi->s_fsize);
- memcpy (mem, ubh->bh[bhno]->b_data, len);
- mem += uspi->s_fsize;
- size -= len;
- bhno++;
- }
-}
-
-void _ubh_memcpyubh_(struct ufs_sb_private_info * uspi,
- struct ufs_buffer_head * ubh, unsigned char * mem, unsigned size)
-{
- unsigned len, bhno;
- if (size > (ubh->count << uspi->s_fshift))
- size = ubh->count << uspi->s_fshift;
- bhno = 0;
- while (size) {
- len = min_t(unsigned int, size, uspi->s_fsize);
- memcpy (ubh->bh[bhno]->b_data, mem, len);
- mem += uspi->s_fsize;
- size -= len;
- bhno++;
- }
-}
-
dev_t
ufs_get_inode_dev(struct super_block *sb, struct ufs_inode_info *ufsi)
{
diff --git a/fs/ufs/util.h b/fs/ufs/util.h
index 0ecd2ed792f5..391bb4f11d74 100644
--- a/fs/ufs/util.h
+++ b/fs/ufs/util.h
@@ -250,9 +250,9 @@ ufs_set_inode_gid(struct super_block *sb, struct ufs_inode *inode, u32 value)
}
}
-extern dev_t ufs_get_inode_dev(struct super_block *, struct ufs_inode_info *);
-extern void ufs_set_inode_dev(struct super_block *, struct ufs_inode_info *, dev_t);
-extern int ufs_prepare_chunk(struct page *page, loff_t pos, unsigned len);
+dev_t ufs_get_inode_dev(struct super_block *, struct ufs_inode_info *);
+void ufs_set_inode_dev(struct super_block *, struct ufs_inode_info *, dev_t);
+int ufs_prepare_chunk(struct folio *folio, loff_t pos, unsigned len);
/*
* These functions manipulate ufs buffers
@@ -263,14 +263,9 @@ extern struct ufs_buffer_head * ubh_bread_uspi(struct ufs_sb_private_info *, str
extern void ubh_brelse (struct ufs_buffer_head *);
extern void ubh_brelse_uspi (struct ufs_sb_private_info *);
extern void ubh_mark_buffer_dirty (struct ufs_buffer_head *);
-extern void ubh_mark_buffer_uptodate (struct ufs_buffer_head *, int);
extern void ubh_sync_block(struct ufs_buffer_head *);
extern void ubh_bforget (struct ufs_buffer_head *);
extern int ubh_buffer_dirty (struct ufs_buffer_head *);
-#define ubh_ubhcpymem(mem,ubh,size) _ubh_ubhcpymem_(uspi,mem,ubh,size)
-extern void _ubh_ubhcpymem_(struct ufs_sb_private_info *, unsigned char *, struct ufs_buffer_head *, unsigned);
-#define ubh_memcpyubh(ubh,mem,size) _ubh_memcpyubh_(uspi,ubh,mem,size)
-extern void _ubh_memcpyubh_(struct ufs_sb_private_info *, struct ufs_buffer_head *, unsigned char *, unsigned);
/* This functions works with cache pages*/
struct folio *ufs_get_locked_folio(struct address_space *mapping, pgoff_t index);
@@ -455,65 +450,69 @@ static inline unsigned _ubh_find_last_zero_bit_(
return (base << uspi->s_bpfshift) + pos - begin;
}
-#define ubh_isblockclear(ubh,begin,block) (!_ubh_isblockset_(uspi,ubh,begin,block))
-
-#define ubh_isblockset(ubh,begin,block) _ubh_isblockset_(uspi,ubh,begin,block)
-static inline int _ubh_isblockset_(struct ufs_sb_private_info * uspi,
- struct ufs_buffer_head * ubh, unsigned begin, unsigned block)
+static inline int ubh_isblockset(struct ufs_sb_private_info *uspi,
+ struct ufs_cg_private_info *ucpi, unsigned int frag)
{
+ struct ufs_buffer_head *ubh = UCPI_UBH(ucpi);
+ u8 *p = ubh_get_addr(ubh, ucpi->c_freeoff + (frag >> 3));
u8 mask;
+
switch (uspi->s_fpb) {
case 8:
- return (*ubh_get_addr (ubh, begin + block) == 0xff);
+ return *p == 0xff;
case 4:
- mask = 0x0f << ((block & 0x01) << 2);
- return (*ubh_get_addr (ubh, begin + (block >> 1)) & mask) == mask;
+ mask = 0x0f << (frag & 4);
+ return (*p & mask) == mask;
case 2:
- mask = 0x03 << ((block & 0x03) << 1);
- return (*ubh_get_addr (ubh, begin + (block >> 2)) & mask) == mask;
+ mask = 0x03 << (frag & 6);
+ return (*p & mask) == mask;
case 1:
- mask = 0x01 << (block & 0x07);
- return (*ubh_get_addr (ubh, begin + (block >> 3)) & mask) == mask;
+ mask = 0x01 << (frag & 7);
+ return (*p & mask) == mask;
}
return 0;
}
-#define ubh_clrblock(ubh,begin,block) _ubh_clrblock_(uspi,ubh,begin,block)
-static inline void _ubh_clrblock_(struct ufs_sb_private_info * uspi,
- struct ufs_buffer_head * ubh, unsigned begin, unsigned block)
+static inline void ubh_clrblock(struct ufs_sb_private_info *uspi,
+ struct ufs_cg_private_info *ucpi, unsigned int frag)
{
+ struct ufs_buffer_head *ubh = UCPI_UBH(ucpi);
+ u8 *p = ubh_get_addr(ubh, ucpi->c_freeoff + (frag >> 3));
+
switch (uspi->s_fpb) {
case 8:
- *ubh_get_addr (ubh, begin + block) = 0x00;
+ *p = 0x00;
return;
case 4:
- *ubh_get_addr (ubh, begin + (block >> 1)) &= ~(0x0f << ((block & 0x01) << 2));
+ *p &= ~(0x0f << (frag & 4));
return;
case 2:
- *ubh_get_addr (ubh, begin + (block >> 2)) &= ~(0x03 << ((block & 0x03) << 1));
+ *p &= ~(0x03 << (frag & 6));
return;
case 1:
- *ubh_get_addr (ubh, begin + (block >> 3)) &= ~(0x01 << ((block & 0x07)));
+ *p &= ~(0x01 << (frag & 7));
return;
}
}
-#define ubh_setblock(ubh,begin,block) _ubh_setblock_(uspi,ubh,begin,block)
-static inline void _ubh_setblock_(struct ufs_sb_private_info * uspi,
- struct ufs_buffer_head * ubh, unsigned begin, unsigned block)
+static inline void ubh_setblock(struct ufs_sb_private_info * uspi,
+ struct ufs_cg_private_info *ucpi, unsigned int frag)
{
+ struct ufs_buffer_head *ubh = UCPI_UBH(ucpi);
+ u8 *p = ubh_get_addr(ubh, ucpi->c_freeoff + (frag >> 3));
+
switch (uspi->s_fpb) {
case 8:
- *ubh_get_addr(ubh, begin + block) = 0xff;
+ *p = 0xff;
return;
case 4:
- *ubh_get_addr(ubh, begin + (block >> 1)) |= (0x0f << ((block & 0x01) << 2));
+ *p |= 0x0f << (frag & 4);
return;
case 2:
- *ubh_get_addr(ubh, begin + (block >> 2)) |= (0x03 << ((block & 0x03) << 1));
+ *p |= 0x03 << (frag & 6);
return;
case 1:
- *ubh_get_addr(ubh, begin + (block >> 3)) |= (0x01 << ((block & 0x07)));
+ *p |= 0x01 << (frag & 7);
return;
}
}
generated by cgit (git 2.34.1) at 2025-07-23 08:17:37 +0000