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Diffstat (limited to 'fs/f2fs/dir.c')
-rw-r--r--fs/f2fs/dir.c74
1 files changed, 40 insertions, 34 deletions
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index c0c933ad43c8..8c9c2f31b253 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -10,10 +10,12 @@
*/
#include <linux/fs.h>
#include <linux/f2fs_fs.h>
+#include <linux/sched/signal.h>
#include "f2fs.h"
#include "node.h"
#include "acl.h"
#include "xattr.h"
+#include <trace/events/f2fs.h>
static unsigned long dir_blocks(struct inode *inode)
{
@@ -92,14 +94,12 @@ static struct f2fs_dir_entry *find_in_block(struct page *dentry_page,
struct f2fs_dir_entry *de;
struct f2fs_dentry_ptr d;
- dentry_blk = (struct f2fs_dentry_block *)kmap(dentry_page);
+ dentry_blk = (struct f2fs_dentry_block *)page_address(dentry_page);
make_dentry_ptr_block(NULL, &d, dentry_blk);
de = find_target_dentry(fname, namehash, max_slots, &d);
if (de)
*res_page = dentry_page;
- else
- kunmap(dentry_page);
return de;
}
@@ -285,7 +285,6 @@ ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
de = f2fs_find_entry(dir, qstr, page);
if (de) {
res = le32_to_cpu(de->ino);
- f2fs_dentry_kunmap(dir, *page);
f2fs_put_page(*page, 0);
}
@@ -300,7 +299,6 @@ void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
f2fs_wait_on_page_writeback(page, type, true);
de->ino = cpu_to_le32(inode->i_ino);
set_de_type(de, inode->i_mode);
- f2fs_dentry_kunmap(dir, page);
set_page_dirty(page);
dir->i_mtime = dir->i_ctime = current_time(dir);
@@ -348,13 +346,11 @@ static int make_empty_dir(struct inode *inode,
if (IS_ERR(dentry_page))
return PTR_ERR(dentry_page);
- dentry_blk = kmap_atomic(dentry_page);
+ dentry_blk = page_address(dentry_page);
make_dentry_ptr_block(NULL, &d, dentry_blk);
do_make_empty_dir(inode, parent, &d);
- kunmap_atomic(dentry_blk);
-
set_page_dirty(dentry_page);
f2fs_put_page(dentry_page, 1);
return 0;
@@ -365,6 +361,7 @@ struct page *init_inode_metadata(struct inode *inode, struct inode *dir,
struct page *dpage)
{
struct page *page;
+ int dummy_encrypt = DUMMY_ENCRYPTION_ENABLED(F2FS_I_SB(dir));
int err;
if (is_inode_flag_set(inode, FI_NEW_INODE)) {
@@ -391,7 +388,8 @@ struct page *init_inode_metadata(struct inode *inode, struct inode *dir,
if (err)
goto put_error;
- if (f2fs_encrypted_inode(dir) && f2fs_may_encrypt(inode)) {
+ if ((f2fs_encrypted_inode(dir) || dummy_encrypt) &&
+ f2fs_may_encrypt(inode)) {
err = fscrypt_inherit_context(dir, inode, page, false);
if (err)
goto put_error;
@@ -400,8 +398,6 @@ struct page *init_inode_metadata(struct inode *inode, struct inode *dir,
page = get_node_page(F2FS_I_SB(dir), inode->i_ino);
if (IS_ERR(page))
return page;
-
- set_cold_node(inode, page);
}
if (new_name) {
@@ -545,13 +541,12 @@ start:
if (IS_ERR(dentry_page))
return PTR_ERR(dentry_page);
- dentry_blk = kmap(dentry_page);
+ dentry_blk = page_address(dentry_page);
bit_pos = room_for_filename(&dentry_blk->dentry_bitmap,
slots, NR_DENTRY_IN_BLOCK);
if (bit_pos < NR_DENTRY_IN_BLOCK)
goto add_dentry;
- kunmap(dentry_page);
f2fs_put_page(dentry_page, 1);
}
@@ -586,7 +581,6 @@ fail:
if (inode)
up_write(&F2FS_I(inode)->i_sem);
- kunmap(dentry_page);
f2fs_put_page(dentry_page, 1);
return err;
@@ -640,7 +634,6 @@ int __f2fs_add_link(struct inode *dir, const struct qstr *name,
F2FS_I(dir)->task = NULL;
}
if (de) {
- f2fs_dentry_kunmap(dir, page);
f2fs_put_page(page, 0);
err = -EEXIST;
} else if (IS_ERR(page)) {
@@ -711,6 +704,9 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
f2fs_update_time(F2FS_I_SB(dir), REQ_TIME);
+ if (F2FS_OPTION(F2FS_I_SB(dir)).fsync_mode == FSYNC_MODE_STRICT)
+ add_ino_entry(F2FS_I_SB(dir), dir->i_ino, TRANS_DIR_INO);
+
if (f2fs_has_inline_dentry(dir))
return f2fs_delete_inline_entry(dentry, page, dir, inode);
@@ -726,7 +722,6 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
bit_pos = find_next_bit_le(&dentry_blk->dentry_bitmap,
NR_DENTRY_IN_BLOCK,
0);
- kunmap(page); /* kunmap - pair of f2fs_find_entry */
set_page_dirty(page);
dir->i_ctime = dir->i_mtime = current_time(dir);
@@ -737,10 +732,10 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
if (bit_pos == NR_DENTRY_IN_BLOCK &&
!truncate_hole(dir, page->index, page->index + 1)) {
- spin_lock_irqsave(&mapping->tree_lock, flags);
- radix_tree_tag_clear(&mapping->page_tree, page_index(page),
+ xa_lock_irqsave(&mapping->i_pages, flags);
+ radix_tree_tag_clear(&mapping->i_pages, page_index(page),
PAGECACHE_TAG_DIRTY);
- spin_unlock_irqrestore(&mapping->tree_lock, flags);
+ xa_unlock_irqrestore(&mapping->i_pages, flags);
clear_page_dirty_for_io(page);
ClearPagePrivate(page);
@@ -771,7 +766,7 @@ bool f2fs_empty_dir(struct inode *dir)
return false;
}
- dentry_blk = kmap_atomic(dentry_page);
+ dentry_blk = page_address(dentry_page);
if (bidx == 0)
bit_pos = 2;
else
@@ -779,7 +774,6 @@ bool f2fs_empty_dir(struct inode *dir)
bit_pos = find_next_bit_le(&dentry_blk->dentry_bitmap,
NR_DENTRY_IN_BLOCK,
bit_pos);
- kunmap_atomic(dentry_blk);
f2fs_put_page(dentry_page, 1);
@@ -796,6 +790,7 @@ int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
unsigned int bit_pos;
struct f2fs_dir_entry *de = NULL;
struct fscrypt_str de_name = FSTR_INIT(NULL, 0);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(d->inode);
bit_pos = ((unsigned long)ctx->pos % d->max);
@@ -834,6 +829,9 @@ int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
le32_to_cpu(de->ino), d_type))
return 1;
+ if (sbi->readdir_ra == 1)
+ ra_node_page(sbi, le32_to_cpu(de->ino));
+
bit_pos += GET_DENTRY_SLOTS(le16_to_cpu(de->name_len));
ctx->pos = start_pos + bit_pos;
}
@@ -847,6 +845,7 @@ static int f2fs_readdir(struct file *file, struct dir_context *ctx)
struct f2fs_dentry_block *dentry_blk = NULL;
struct page *dentry_page = NULL;
struct file_ra_state *ra = &file->f_ra;
+ loff_t start_pos = ctx->pos;
unsigned int n = ((unsigned long)ctx->pos / NR_DENTRY_IN_BLOCK);
struct f2fs_dentry_ptr d;
struct fscrypt_str fstr = FSTR_INIT(NULL, 0);
@@ -855,24 +854,32 @@ static int f2fs_readdir(struct file *file, struct dir_context *ctx)
if (f2fs_encrypted_inode(inode)) {
err = fscrypt_get_encryption_info(inode);
if (err && err != -ENOKEY)
- return err;
+ goto out;
err = fscrypt_fname_alloc_buffer(inode, F2FS_NAME_LEN, &fstr);
if (err < 0)
- return err;
+ goto out;
}
if (f2fs_has_inline_dentry(inode)) {
err = f2fs_read_inline_dir(file, ctx, &fstr);
- goto out;
+ goto out_free;
}
- /* readahead for multi pages of dir */
- if (npages - n > 1 && !ra_has_index(ra, n))
- page_cache_sync_readahead(inode->i_mapping, ra, file, n,
+ for (; n < npages; n++, ctx->pos = n * NR_DENTRY_IN_BLOCK) {
+
+ /* allow readdir() to be interrupted */
+ if (fatal_signal_pending(current)) {
+ err = -ERESTARTSYS;
+ goto out_free;
+ }
+ cond_resched();
+
+ /* readahead for multi pages of dir */
+ if (npages - n > 1 && !ra_has_index(ra, n))
+ page_cache_sync_readahead(inode->i_mapping, ra, file, n,
min(npages - n, (pgoff_t)MAX_DIR_RA_PAGES));
- for (; n < npages; n++) {
dentry_page = get_lock_data_page(inode, n, false);
if (IS_ERR(dentry_page)) {
err = PTR_ERR(dentry_page);
@@ -880,28 +887,27 @@ static int f2fs_readdir(struct file *file, struct dir_context *ctx)
err = 0;
continue;
} else {
- goto out;
+ goto out_free;
}
}
- dentry_blk = kmap(dentry_page);
+ dentry_blk = page_address(dentry_page);
make_dentry_ptr_block(inode, &d, dentry_blk);
err = f2fs_fill_dentries(ctx, &d,
n * NR_DENTRY_IN_BLOCK, &fstr);
if (err) {
- kunmap(dentry_page);
f2fs_put_page(dentry_page, 1);
break;
}
- ctx->pos = (n + 1) * NR_DENTRY_IN_BLOCK;
- kunmap(dentry_page);
f2fs_put_page(dentry_page, 1);
}
-out:
+out_free:
fscrypt_fname_free_buffer(&fstr);
+out:
+ trace_f2fs_readdir(inode, start_pos, ctx->pos, err);
return err < 0 ? err : 0;
}
generated by cgit (git 2.34.1) at 2024-05-27 13:37:05 +0000