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-rw-r--r--fs/jffs2/Kconfig3
-rw-r--r--fs/jffs2/acl.c4
-rw-r--r--fs/jffs2/acl.h2
-rw-r--r--fs/jffs2/background.c4
-rw-r--r--fs/jffs2/build.c5
-rw-r--r--fs/jffs2/compr.c50
-rw-r--r--fs/jffs2/compr.h26
-rw-r--r--fs/jffs2/compr_rtime.c3
-rw-r--r--fs/jffs2/compr_rubin.c5
-rw-r--r--fs/jffs2/debug.c2
-rw-r--r--fs/jffs2/dir.c63
-rw-r--r--fs/jffs2/erase.c11
-rw-r--r--fs/jffs2/file.c144
-rw-r--r--fs/jffs2/fs.c40
-rw-r--r--fs/jffs2/gc.c27
-rw-r--r--fs/jffs2/malloc.c32
-rw-r--r--fs/jffs2/nodemgmt.c41
-rw-r--r--fs/jffs2/os-linux.h8
-rw-r--r--fs/jffs2/readinode.c2
-rw-r--r--fs/jffs2/scan.c4
-rw-r--r--fs/jffs2/security.c2
-rw-r--r--fs/jffs2/summary.c7
-rw-r--r--fs/jffs2/super.c4
-rw-r--r--fs/jffs2/wbuf.c2
-rw-r--r--fs/jffs2/xattr.c47
-rw-r--r--fs/jffs2/xattr.h6
-rw-r--r--fs/jffs2/xattr_trusted.c2
-rw-r--r--fs/jffs2/xattr_user.c2
28 files changed, 291 insertions, 257 deletions
diff --git a/fs/jffs2/Kconfig b/fs/jffs2/Kconfig
index 7c96bc107218..560187d61562 100644
--- a/fs/jffs2/Kconfig
+++ b/fs/jffs2/Kconfig
@@ -151,8 +151,9 @@ config JFFS2_RUBIN
RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure.
choice
- prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS
+ prompt "JFFS2 default compression mode"
default JFFS2_CMODE_PRIORITY
+ depends on JFFS2_COMPRESSION_OPTIONS
depends on JFFS2_FS
help
You can set here the default compression mode of JFFS2 from
diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c
index 8bb58ce5c06c..888a7ceb6479 100644
--- a/fs/jffs2/acl.c
+++ b/fs/jffs2/acl.c
@@ -229,7 +229,7 @@ static int __jffs2_set_acl(struct inode *inode, int xprefix, struct posix_acl *a
return rc;
}
-int jffs2_set_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
+int jffs2_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,
struct posix_acl *acl, int type)
{
int rc, xprefix;
@@ -241,7 +241,7 @@ int jffs2_set_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
if (acl) {
umode_t mode;
- rc = posix_acl_update_mode(&init_user_ns, inode, &mode,
+ rc = posix_acl_update_mode(&nop_mnt_idmap, inode, &mode,
&acl);
if (rc)
return rc;
diff --git a/fs/jffs2/acl.h b/fs/jffs2/acl.h
index ca36a6eca594..e976b8cb82cf 100644
--- a/fs/jffs2/acl.h
+++ b/fs/jffs2/acl.h
@@ -28,7 +28,7 @@ struct jffs2_acl_header {
#ifdef CONFIG_JFFS2_FS_POSIX_ACL
struct posix_acl *jffs2_get_acl(struct inode *inode, int type, bool rcu);
-int jffs2_set_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
+int jffs2_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,
struct posix_acl *acl, int type);
extern int jffs2_init_acl_pre(struct inode *, struct inode *, umode_t *);
extern int jffs2_init_acl_post(struct inode *);
diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c
index 6da92ecaf66d..bb0ee1a59e71 100644
--- a/fs/jffs2/background.c
+++ b/fs/jffs2/background.c
@@ -44,8 +44,8 @@ int jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c)
tsk = kthread_run(jffs2_garbage_collect_thread, c, "jffs2_gcd_mtd%d", c->mtd->index);
if (IS_ERR(tsk)) {
- pr_warn("fork failed for JFFS2 garbage collect thread: %ld\n",
- -PTR_ERR(tsk));
+ pr_warn("fork failed for JFFS2 garbage collect thread: %pe\n",
+ tsk);
complete(&c->gc_thread_exit);
ret = PTR_ERR(tsk);
} else {
diff --git a/fs/jffs2/build.c b/fs/jffs2/build.c
index 837cd55fd4c5..6ae9d6fefb86 100644
--- a/fs/jffs2/build.c
+++ b/fs/jffs2/build.c
@@ -211,7 +211,10 @@ static int jffs2_build_filesystem(struct jffs2_sb_info *c)
ic->scan_dents = NULL;
cond_resched();
}
- jffs2_build_xattr_subsystem(c);
+ ret = jffs2_build_xattr_subsystem(c);
+ if (ret)
+ goto exit;
+
c->flags &= ~JFFS2_SB_FLAG_BUILDING;
dbg_fsbuild("FS build complete\n");
diff --git a/fs/jffs2/compr.c b/fs/jffs2/compr.c
index 4849a4c9a0e2..764f19dec3f0 100644
--- a/fs/jffs2/compr.c
+++ b/fs/jffs2/compr.c
@@ -364,20 +364,25 @@ void jffs2_free_comprbuf(unsigned char *comprbuf, unsigned char *orig)
int __init jffs2_compressors_init(void)
{
+ int ret = 0;
/* Registering compressors */
-#ifdef CONFIG_JFFS2_ZLIB
- jffs2_zlib_init();
-#endif
-#ifdef CONFIG_JFFS2_RTIME
- jffs2_rtime_init();
-#endif
-#ifdef CONFIG_JFFS2_RUBIN
- jffs2_rubinmips_init();
- jffs2_dynrubin_init();
-#endif
-#ifdef CONFIG_JFFS2_LZO
- jffs2_lzo_init();
-#endif
+ ret = jffs2_zlib_init();
+ if (ret)
+ goto exit;
+ ret = jffs2_rtime_init();
+ if (ret)
+ goto exit_zlib;
+ ret = jffs2_rubinmips_init();
+ if (ret)
+ goto exit_rtime;
+ ret = jffs2_dynrubin_init();
+ if (ret)
+ goto exit_runinmips;
+ ret = jffs2_lzo_init();
+ if (ret)
+ goto exit_dynrubin;
+
+
/* Setting default compression mode */
#ifdef CONFIG_JFFS2_CMODE_NONE
jffs2_compression_mode = JFFS2_COMPR_MODE_NONE;
@@ -396,23 +401,26 @@ int __init jffs2_compressors_init(void)
#endif
#endif
return 0;
+
+exit_dynrubin:
+ jffs2_dynrubin_exit();
+exit_runinmips:
+ jffs2_rubinmips_exit();
+exit_rtime:
+ jffs2_rtime_exit();
+exit_zlib:
+ jffs2_zlib_exit();
+exit:
+ return ret;
}
int jffs2_compressors_exit(void)
{
/* Unregistering compressors */
-#ifdef CONFIG_JFFS2_LZO
jffs2_lzo_exit();
-#endif
-#ifdef CONFIG_JFFS2_RUBIN
jffs2_dynrubin_exit();
jffs2_rubinmips_exit();
-#endif
-#ifdef CONFIG_JFFS2_RTIME
jffs2_rtime_exit();
-#endif
-#ifdef CONFIG_JFFS2_ZLIB
jffs2_zlib_exit();
-#endif
return 0;
}
diff --git a/fs/jffs2/compr.h b/fs/jffs2/compr.h
index 5e91d578f4ed..3716b6b7924c 100644
--- a/fs/jffs2/compr.h
+++ b/fs/jffs2/compr.h
@@ -88,18 +88,32 @@ int jffs2_rubinmips_init(void);
void jffs2_rubinmips_exit(void);
int jffs2_dynrubin_init(void);
void jffs2_dynrubin_exit(void);
+#else
+static inline int jffs2_rubinmips_init(void) { return 0; }
+static inline void jffs2_rubinmips_exit(void) {}
+static inline int jffs2_dynrubin_init(void) { return 0; }
+static inline void jffs2_dynrubin_exit(void) {}
#endif
#ifdef CONFIG_JFFS2_RTIME
-int jffs2_rtime_init(void);
-void jffs2_rtime_exit(void);
+extern int jffs2_rtime_init(void);
+extern void jffs2_rtime_exit(void);
+#else
+static inline int jffs2_rtime_init(void) { return 0; }
+static inline void jffs2_rtime_exit(void) {}
#endif
#ifdef CONFIG_JFFS2_ZLIB
-int jffs2_zlib_init(void);
-void jffs2_zlib_exit(void);
+extern int jffs2_zlib_init(void);
+extern void jffs2_zlib_exit(void);
+#else
+static inline int jffs2_zlib_init(void) { return 0; }
+static inline void jffs2_zlib_exit(void) {}
#endif
#ifdef CONFIG_JFFS2_LZO
-int jffs2_lzo_init(void);
-void jffs2_lzo_exit(void);
+extern int jffs2_lzo_init(void);
+extern void jffs2_lzo_exit(void);
+#else
+static inline int jffs2_lzo_init(void) { return 0; }
+static inline void jffs2_lzo_exit(void) {}
#endif
#endif /* __JFFS2_COMPR_H__ */
diff --git a/fs/jffs2/compr_rtime.c b/fs/jffs2/compr_rtime.c
index 79e771ab624f..3bd9d2f3bece 100644
--- a/fs/jffs2/compr_rtime.c
+++ b/fs/jffs2/compr_rtime.c
@@ -95,6 +95,9 @@ static int jffs2_rtime_decompress(unsigned char *data_in,
positions[value]=outpos;
if (repeat) {
+ if ((outpos + repeat) > destlen) {
+ return 1;
+ }
if (backoffs + repeat >= outpos) {
while(repeat) {
cpage_out[outpos++] = cpage_out[backoffs++];
diff --git a/fs/jffs2/compr_rubin.c b/fs/jffs2/compr_rubin.c
index 556de100ebd5..9854253d0108 100644
--- a/fs/jffs2/compr_rubin.c
+++ b/fs/jffs2/compr_rubin.c
@@ -276,11 +276,6 @@ static int rubin_do_compress(int bit_divider, int *bits, unsigned char *data_in,
end_rubin(&rs);
- if (outpos > pos) {
- /* We failed */
- return -1;
- }
-
/* Tell the caller how much we managed to compress,
* and how much space it took */
diff --git a/fs/jffs2/debug.c b/fs/jffs2/debug.c
index 9d26b1b9fc01..0925caab23c4 100644
--- a/fs/jffs2/debug.c
+++ b/fs/jffs2/debug.c
@@ -157,7 +157,7 @@ __jffs2_dbg_prewrite_paranoia_check(struct jffs2_sb_info *c,
kfree(buf);
}
-void __jffs2_dbg_superblock_counts(struct jffs2_sb_info *c)
+static void __jffs2_dbg_superblock_counts(struct jffs2_sb_info *c)
{
struct jffs2_eraseblock *jeb;
uint32_t free = 0, dirty = 0, used = 0, wasted = 0,
diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c
index f399b390b5f6..dd91f725ded6 100644
--- a/fs/jffs2/dir.c
+++ b/fs/jffs2/dir.c
@@ -24,20 +24,20 @@
static int jffs2_readdir (struct file *, struct dir_context *);
-static int jffs2_create (struct user_namespace *, struct inode *,
+static int jffs2_create (struct mnt_idmap *, struct inode *,
struct dentry *, umode_t, bool);
static struct dentry *jffs2_lookup (struct inode *,struct dentry *,
unsigned int);
static int jffs2_link (struct dentry *,struct inode *,struct dentry *);
static int jffs2_unlink (struct inode *,struct dentry *);
-static int jffs2_symlink (struct user_namespace *, struct inode *,
+static int jffs2_symlink (struct mnt_idmap *, struct inode *,
struct dentry *, const char *);
-static int jffs2_mkdir (struct user_namespace *, struct inode *,struct dentry *,
- umode_t);
+static struct dentry *jffs2_mkdir (struct mnt_idmap *, struct inode *,struct dentry *,
+ umode_t);
static int jffs2_rmdir (struct inode *,struct dentry *);
-static int jffs2_mknod (struct user_namespace *, struct inode *,struct dentry *,
+static int jffs2_mknod (struct mnt_idmap *, struct inode *,struct dentry *,
umode_t,dev_t);
-static int jffs2_rename (struct user_namespace *, struct inode *,
+static int jffs2_rename (struct mnt_idmap *, struct inode *,
struct dentry *, struct inode *, struct dentry *,
unsigned int);
@@ -160,7 +160,7 @@ static int jffs2_readdir(struct file *file, struct dir_context *ctx)
/***********************************************************************/
-static int jffs2_create(struct user_namespace *mnt_userns, struct inode *dir_i,
+static int jffs2_create(struct mnt_idmap *idmap, struct inode *dir_i,
struct dentry *dentry, umode_t mode, bool excl)
{
struct jffs2_raw_inode *ri;
@@ -204,7 +204,8 @@ static int jffs2_create(struct user_namespace *mnt_userns, struct inode *dir_i,
if (ret)
goto fail;
- dir_i->i_mtime = dir_i->i_ctime = ITIME(je32_to_cpu(ri->ctime));
+ inode_set_mtime_to_ts(dir_i,
+ inode_set_ctime_to_ts(dir_i, ITIME(je32_to_cpu(ri->ctime))));
jffs2_free_raw_inode(ri);
@@ -237,7 +238,8 @@ static int jffs2_unlink(struct inode *dir_i, struct dentry *dentry)
if (dead_f->inocache)
set_nlink(d_inode(dentry), dead_f->inocache->pino_nlink);
if (!ret)
- dir_i->i_mtime = dir_i->i_ctime = ITIME(now);
+ inode_set_mtime_to_ts(dir_i,
+ inode_set_ctime_to_ts(dir_i, ITIME(now)));
return ret;
}
/***********************************************************************/
@@ -271,7 +273,8 @@ static int jffs2_link (struct dentry *old_dentry, struct inode *dir_i, struct de
set_nlink(d_inode(old_dentry), ++f->inocache->pino_nlink);
mutex_unlock(&f->sem);
d_instantiate(dentry, d_inode(old_dentry));
- dir_i->i_mtime = dir_i->i_ctime = ITIME(now);
+ inode_set_mtime_to_ts(dir_i,
+ inode_set_ctime_to_ts(dir_i, ITIME(now)));
ihold(d_inode(old_dentry));
}
return ret;
@@ -279,7 +282,7 @@ static int jffs2_link (struct dentry *old_dentry, struct inode *dir_i, struct de
/***********************************************************************/
-static int jffs2_symlink (struct user_namespace *mnt_userns, struct inode *dir_i,
+static int jffs2_symlink (struct mnt_idmap *idmap, struct inode *dir_i,
struct dentry *dentry, const char *target)
{
struct jffs2_inode_info *f, *dir_f;
@@ -422,7 +425,8 @@ static int jffs2_symlink (struct user_namespace *mnt_userns, struct inode *dir_i
goto fail;
}
- dir_i->i_mtime = dir_i->i_ctime = ITIME(je32_to_cpu(rd->mctime));
+ inode_set_mtime_to_ts(dir_i,
+ inode_set_ctime_to_ts(dir_i, ITIME(je32_to_cpu(rd->mctime))));
jffs2_free_raw_dirent(rd);
@@ -442,8 +446,8 @@ static int jffs2_symlink (struct user_namespace *mnt_userns, struct inode *dir_i
}
-static int jffs2_mkdir (struct user_namespace *mnt_userns, struct inode *dir_i,
- struct dentry *dentry, umode_t mode)
+static struct dentry *jffs2_mkdir (struct mnt_idmap *idmap, struct inode *dir_i,
+ struct dentry *dentry, umode_t mode)
{
struct jffs2_inode_info *f, *dir_f;
struct jffs2_sb_info *c;
@@ -460,7 +464,7 @@ static int jffs2_mkdir (struct user_namespace *mnt_userns, struct inode *dir_i,
ri = jffs2_alloc_raw_inode();
if (!ri)
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
c = JFFS2_SB_INFO(dir_i->i_sb);
@@ -473,7 +477,7 @@ static int jffs2_mkdir (struct user_namespace *mnt_userns, struct inode *dir_i,
if (ret) {
jffs2_free_raw_inode(ri);
- return ret;
+ return ERR_PTR(ret);
}
inode = jffs2_new_inode(dir_i, mode, ri);
@@ -481,7 +485,7 @@ static int jffs2_mkdir (struct user_namespace *mnt_userns, struct inode *dir_i,
if (IS_ERR(inode)) {
jffs2_free_raw_inode(ri);
jffs2_complete_reservation(c);
- return PTR_ERR(inode);
+ return ERR_CAST(inode);
}
inode->i_op = &jffs2_dir_inode_operations;
@@ -566,7 +570,8 @@ static int jffs2_mkdir (struct user_namespace *mnt_userns, struct inode *dir_i,
goto fail;
}
- dir_i->i_mtime = dir_i->i_ctime = ITIME(je32_to_cpu(rd->mctime));
+ inode_set_mtime_to_ts(dir_i,
+ inode_set_ctime_to_ts(dir_i, ITIME(je32_to_cpu(rd->mctime))));
inc_nlink(dir_i);
jffs2_free_raw_dirent(rd);
@@ -579,11 +584,11 @@ static int jffs2_mkdir (struct user_namespace *mnt_userns, struct inode *dir_i,
jffs2_complete_reservation(c);
d_instantiate_new(dentry, inode);
- return 0;
+ return NULL;
fail:
iget_failed(inode);
- return ret;
+ return ERR_PTR(ret);
}
static int jffs2_rmdir (struct inode *dir_i, struct dentry *dentry)
@@ -607,14 +612,15 @@ static int jffs2_rmdir (struct inode *dir_i, struct dentry *dentry)
ret = jffs2_do_unlink(c, dir_f, dentry->d_name.name,
dentry->d_name.len, f, now);
if (!ret) {
- dir_i->i_mtime = dir_i->i_ctime = ITIME(now);
+ inode_set_mtime_to_ts(dir_i,
+ inode_set_ctime_to_ts(dir_i, ITIME(now)));
clear_nlink(d_inode(dentry));
drop_nlink(dir_i);
}
return ret;
}
-static int jffs2_mknod (struct user_namespace *mnt_userns, struct inode *dir_i,
+static int jffs2_mknod (struct mnt_idmap *idmap, struct inode *dir_i,
struct dentry *dentry, umode_t mode, dev_t rdev)
{
struct jffs2_inode_info *f, *dir_f;
@@ -743,7 +749,8 @@ static int jffs2_mknod (struct user_namespace *mnt_userns, struct inode *dir_i,
goto fail;
}
- dir_i->i_mtime = dir_i->i_ctime = ITIME(je32_to_cpu(rd->mctime));
+ inode_set_mtime_to_ts(dir_i,
+ inode_set_ctime_to_ts(dir_i, ITIME(je32_to_cpu(rd->mctime))));
jffs2_free_raw_dirent(rd);
@@ -762,7 +769,7 @@ static int jffs2_mknod (struct user_namespace *mnt_userns, struct inode *dir_i,
return ret;
}
-static int jffs2_rename (struct user_namespace *mnt_userns,
+static int jffs2_rename (struct mnt_idmap *idmap,
struct inode *old_dir_i, struct dentry *old_dentry,
struct inode *new_dir_i, struct dentry *new_dentry,
unsigned int flags)
@@ -864,14 +871,18 @@ static int jffs2_rename (struct user_namespace *mnt_userns,
* caller won't do it on its own since we are returning an error.
*/
d_invalidate(new_dentry);
- new_dir_i->i_mtime = new_dir_i->i_ctime = ITIME(now);
+ inode_set_mtime_to_ts(new_dir_i,
+ inode_set_ctime_to_ts(new_dir_i, ITIME(now)));
return ret;
}
if (d_is_dir(old_dentry))
drop_nlink(old_dir_i);
- new_dir_i->i_mtime = new_dir_i->i_ctime = old_dir_i->i_mtime = old_dir_i->i_ctime = ITIME(now);
+ inode_set_mtime_to_ts(old_dir_i,
+ inode_set_ctime_to_ts(old_dir_i, ITIME(now)));
+ inode_set_mtime_to_ts(new_dir_i,
+ inode_set_ctime_to_ts(new_dir_i, ITIME(now)));
return 0;
}
diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
index acd32f05b519..fda9f4d6093f 100644
--- a/fs/jffs2/erase.c
+++ b/fs/jffs2/erase.c
@@ -338,10 +338,9 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl
} while(--retlen);
mtd_unpoint(c->mtd, jeb->offset, c->sector_size);
if (retlen) {
- pr_warn("Newly-erased block contained word 0x%lx at offset 0x%08tx\n",
- *wordebuf,
- jeb->offset +
- c->sector_size-retlen * sizeof(*wordebuf));
+ *bad_offset = jeb->offset + c->sector_size - retlen * sizeof(*wordebuf);
+ pr_warn("Newly-erased block contained word 0x%lx at offset 0x%08x\n",
+ *wordebuf, *bad_offset);
return -EIO;
}
return 0;
@@ -426,7 +425,9 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb
.totlen = cpu_to_je32(c->cleanmarker_size)
};
- jffs2_prealloc_raw_node_refs(c, jeb, 1);
+ ret = jffs2_prealloc_raw_node_refs(c, jeb, 1);
+ if (ret)
+ goto filebad;
marker.hdr_crc = cpu_to_je32(crc32(0, &marker, sizeof(struct jffs2_unknown_node)-4));
diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
index 3cf71befa475..b697f3c259ef 100644
--- a/fs/jffs2/file.c
+++ b/fs/jffs2/file.c
@@ -21,12 +21,14 @@
#include <linux/jffs2.h>
#include "nodelist.h"
-static int jffs2_write_end(struct file *filp, struct address_space *mapping,
- loff_t pos, unsigned len, unsigned copied,
- struct page *pg, void *fsdata);
-static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
- loff_t pos, unsigned len,
- struct page **pagep, void **fsdata);
+static int jffs2_write_end(const struct kiocb *iocb,
+ struct address_space *mapping,
+ loff_t pos, unsigned len, unsigned copied,
+ struct folio *folio, void *fsdata);
+static int jffs2_write_begin(const struct kiocb *iocb,
+ struct address_space *mapping,
+ loff_t pos, unsigned len,
+ struct folio **foliop, void **fsdata);
static int jffs2_read_folio(struct file *filp, struct folio *folio);
int jffs2_fsync(struct file *filp, loff_t start, loff_t end, int datasync)
@@ -54,9 +56,9 @@ const struct file_operations jffs2_file_operations =
.read_iter = generic_file_read_iter,
.write_iter = generic_file_write_iter,
.unlocked_ioctl=jffs2_ioctl,
- .mmap = generic_file_readonly_mmap,
+ .mmap_prepare = generic_file_readonly_mmap_prepare,
.fsync = jffs2_fsync,
- .splice_read = generic_file_splice_read,
+ .splice_read = filemap_splice_read,
.splice_write = iter_file_splice_write,
};
@@ -77,34 +79,27 @@ const struct address_space_operations jffs2_file_address_operations =
.write_end = jffs2_write_end,
};
-static int jffs2_do_readpage_nolock (struct inode *inode, struct page *pg)
+static int jffs2_do_readpage_nolock(struct inode *inode, struct folio *folio)
{
struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
- unsigned char *pg_buf;
+ unsigned char *kaddr;
int ret;
jffs2_dbg(2, "%s(): ino #%lu, page at offset 0x%lx\n",
- __func__, inode->i_ino, pg->index << PAGE_SHIFT);
+ __func__, inode->i_ino, folio->index << PAGE_SHIFT);
- BUG_ON(!PageLocked(pg));
+ BUG_ON(!folio_test_locked(folio));
- pg_buf = kmap(pg);
- /* FIXME: Can kmap fail? */
-
- ret = jffs2_read_inode_range(c, f, pg_buf, pg->index << PAGE_SHIFT,
+ kaddr = kmap_local_folio(folio, 0);
+ ret = jffs2_read_inode_range(c, f, kaddr, folio->index << PAGE_SHIFT,
PAGE_SIZE);
+ kunmap_local(kaddr);
- if (ret) {
- ClearPageUptodate(pg);
- SetPageError(pg);
- } else {
- SetPageUptodate(pg);
- ClearPageError(pg);
- }
+ if (!ret)
+ folio_mark_uptodate(folio);
- flush_dcache_page(pg);
- kunmap(pg);
+ flush_dcache_folio(folio);
jffs2_dbg(2, "readpage finished\n");
return ret;
@@ -112,7 +107,7 @@ static int jffs2_do_readpage_nolock (struct inode *inode, struct page *pg)
int __jffs2_read_folio(struct file *file, struct folio *folio)
{
- int ret = jffs2_do_readpage_nolock(folio->mapping->host, &folio->page);
+ int ret = jffs2_do_readpage_nolock(folio->mapping->host, folio);
folio_unlock(folio);
return ret;
}
@@ -128,28 +123,28 @@ static int jffs2_read_folio(struct file *file, struct folio *folio)
return ret;
}
-static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
- loff_t pos, unsigned len,
- struct page **pagep, void **fsdata)
+static int jffs2_write_begin(const struct kiocb *iocb,
+ struct address_space *mapping,
+ loff_t pos, unsigned len,
+ struct folio **foliop, void **fsdata)
{
- struct page *pg;
+ struct folio *folio;
struct inode *inode = mapping->host;
struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
pgoff_t index = pos >> PAGE_SHIFT;
- uint32_t pageofs = index << PAGE_SHIFT;
int ret = 0;
jffs2_dbg(1, "%s()\n", __func__);
- if (pageofs > inode->i_size) {
- /* Make new hole frag from old EOF to new page */
+ if (pos > inode->i_size) {
+ /* Make new hole frag from old EOF to new position */
struct jffs2_raw_inode ri;
struct jffs2_full_dnode *fn;
uint32_t alloc_len;
- jffs2_dbg(1, "Writing new hole frag 0x%x-0x%x between current EOF and new page\n",
- (unsigned int)inode->i_size, pageofs);
+ jffs2_dbg(1, "Writing new hole frag 0x%x-0x%x between current EOF and new position\n",
+ (unsigned int)inode->i_size, (uint32_t)pos);
ret = jffs2_reserve_space(c, sizeof(ri), &alloc_len,
ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
@@ -169,10 +164,10 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
ri.mode = cpu_to_jemode(inode->i_mode);
ri.uid = cpu_to_je16(i_uid_read(inode));
ri.gid = cpu_to_je16(i_gid_read(inode));
- ri.isize = cpu_to_je32(max((uint32_t)inode->i_size, pageofs));
+ ri.isize = cpu_to_je32((uint32_t)pos);
ri.atime = ri.ctime = ri.mtime = cpu_to_je32(JFFS2_NOW());
ri.offset = cpu_to_je32(inode->i_size);
- ri.dsize = cpu_to_je32(pageofs - inode->i_size);
+ ri.dsize = cpu_to_je32((uint32_t)pos - inode->i_size);
ri.csize = cpu_to_je32(0);
ri.compr = JFFS2_COMPR_ZERO;
ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri)-8));
@@ -202,7 +197,7 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
goto out_err;
}
jffs2_complete_reservation(c);
- inode->i_size = pageofs;
+ inode->i_size = pos;
mutex_unlock(&f->sem);
}
@@ -212,29 +207,30 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
* page in read_cache_page(), which causes a deadlock.
*/
mutex_lock(&c->alloc_sem);
- pg = grab_cache_page_write_begin(mapping, index);
- if (!pg) {
- ret = -ENOMEM;
+ folio = __filemap_get_folio(mapping, index, FGP_WRITEBEGIN,
+ mapping_gfp_mask(mapping));
+ if (IS_ERR(folio)) {
+ ret = PTR_ERR(folio);
goto release_sem;
}
- *pagep = pg;
+ *foliop = folio;
/*
- * Read in the page if it wasn't already present. Cannot optimize away
- * the whole page write case until jffs2_write_end can handle the
+ * Read in the folio if it wasn't already present. Cannot optimize away
+ * the whole folio write case until jffs2_write_end can handle the
* case of a short-copy.
*/
- if (!PageUptodate(pg)) {
+ if (!folio_test_uptodate(folio)) {
mutex_lock(&f->sem);
- ret = jffs2_do_readpage_nolock(inode, pg);
+ ret = jffs2_do_readpage_nolock(inode, folio);
mutex_unlock(&f->sem);
if (ret) {
- unlock_page(pg);
- put_page(pg);
+ folio_unlock(folio);
+ folio_put(folio);
goto release_sem;
}
}
- jffs2_dbg(1, "end write_begin(). pg->flags %lx\n", pg->flags);
+ jffs2_dbg(1, "end write_begin(). folio->flags %lx\n", folio->flags.f);
release_sem:
mutex_unlock(&c->alloc_sem);
@@ -242,9 +238,10 @@ out_err:
return ret;
}
-static int jffs2_write_end(struct file *filp, struct address_space *mapping,
- loff_t pos, unsigned len, unsigned copied,
- struct page *pg, void *fsdata)
+static int jffs2_write_end(const struct kiocb *iocb,
+ struct address_space *mapping,
+ loff_t pos, unsigned len, unsigned copied,
+ struct folio *folio, void *fsdata)
{
/* Actually commit the write from the page cache page we're looking at.
* For now, we write the full page out each time. It sucks, but it's simple
@@ -258,16 +255,17 @@ static int jffs2_write_end(struct file *filp, struct address_space *mapping,
unsigned aligned_start = start & ~3;
int ret = 0;
uint32_t writtenlen = 0;
+ void *buf;
- jffs2_dbg(1, "%s(): ino #%lu, page at 0x%lx, range %d-%d, flags %lx\n",
- __func__, inode->i_ino, pg->index << PAGE_SHIFT,
- start, end, pg->flags);
+ jffs2_dbg(1, "%s(): ino #%lu, page at 0x%llx, range %d-%d, flags %lx\n",
+ __func__, inode->i_ino, folio_pos(folio),
+ start, end, folio->flags.f);
/* We need to avoid deadlock with page_cache_read() in
- jffs2_garbage_collect_pass(). So the page must be
+ jffs2_garbage_collect_pass(). So the folio must be
up to date to prevent page_cache_read() from trying
to re-lock it. */
- BUG_ON(!PageUptodate(pg));
+ BUG_ON(!folio_test_uptodate(folio));
if (end == PAGE_SIZE) {
/* When writing out the end of a page, write out the
@@ -282,8 +280,8 @@ static int jffs2_write_end(struct file *filp, struct address_space *mapping,
if (!ri) {
jffs2_dbg(1, "%s(): Allocation of raw inode failed\n",
__func__);
- unlock_page(pg);
- put_page(pg);
+ folio_unlock(folio);
+ folio_put(folio);
return -ENOMEM;
}
@@ -295,20 +293,14 @@ static int jffs2_write_end(struct file *filp, struct address_space *mapping,
ri->isize = cpu_to_je32((uint32_t)inode->i_size);
ri->atime = ri->ctime = ri->mtime = cpu_to_je32(JFFS2_NOW());
- /* In 2.4, it was already kmapped by generic_file_write(). Doesn't
- hurt to do it again. The alternative is ifdefs, which are ugly. */
- kmap(pg);
-
- ret = jffs2_write_inode_range(c, f, ri, page_address(pg) + aligned_start,
- (pg->index << PAGE_SHIFT) + aligned_start,
+ buf = kmap_local_folio(folio, aligned_start);
+ ret = jffs2_write_inode_range(c, f, ri, buf,
+ folio_pos(folio) + aligned_start,
end - aligned_start, &writtenlen);
+ kunmap_local(buf);
- kunmap(pg);
-
- if (ret) {
- /* There was an error writing. */
- SetPageError(pg);
- }
+ if (ret)
+ mapping_set_error(mapping, ret);
/* Adjust writtenlen for the padding we did, so we don't confuse our caller */
writtenlen -= min(writtenlen, (start - aligned_start));
@@ -318,7 +310,8 @@ static int jffs2_write_end(struct file *filp, struct address_space *mapping,
inode->i_size = pos + writtenlen;
inode->i_blocks = (inode->i_size + 511) >> 9;
- inode->i_ctime = inode->i_mtime = ITIME(je32_to_cpu(ri->ctime));
+ inode_set_mtime_to_ts(inode,
+ inode_set_ctime_to_ts(inode, ITIME(je32_to_cpu(ri->ctime))));
}
}
@@ -330,13 +323,12 @@ static int jffs2_write_end(struct file *filp, struct address_space *mapping,
it gets reread */
jffs2_dbg(1, "%s(): Not all bytes written. Marking page !uptodate\n",
__func__);
- SetPageError(pg);
- ClearPageUptodate(pg);
+ folio_clear_uptodate(folio);
}
jffs2_dbg(1, "%s() returning %d\n",
__func__, writtenlen > 0 ? writtenlen : ret);
- unlock_page(pg);
- put_page(pg);
+ folio_unlock(folio);
+ folio_put(folio);
return writtenlen > 0 ? writtenlen : ret;
}
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index 66af51c41619..764bba8ba999 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -113,9 +113,9 @@ int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
ri->isize = cpu_to_je32((ivalid & ATTR_SIZE)?iattr->ia_size:inode->i_size);
- ri->atime = cpu_to_je32(I_SEC((ivalid & ATTR_ATIME)?iattr->ia_atime:inode->i_atime));
- ri->mtime = cpu_to_je32(I_SEC((ivalid & ATTR_MTIME)?iattr->ia_mtime:inode->i_mtime));
- ri->ctime = cpu_to_je32(I_SEC((ivalid & ATTR_CTIME)?iattr->ia_ctime:inode->i_ctime));
+ ri->atime = cpu_to_je32(I_SEC((ivalid & ATTR_ATIME)?iattr->ia_atime:inode_get_atime(inode)));
+ ri->mtime = cpu_to_je32(I_SEC((ivalid & ATTR_MTIME)?iattr->ia_mtime:inode_get_mtime(inode)));
+ ri->ctime = cpu_to_je32(I_SEC((ivalid & ATTR_CTIME)?iattr->ia_ctime:inode_get_ctime(inode)));
ri->offset = cpu_to_je32(0);
ri->csize = ri->dsize = cpu_to_je32(mdatalen);
@@ -147,9 +147,9 @@ int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
return PTR_ERR(new_metadata);
}
/* It worked. Update the inode */
- inode->i_atime = ITIME(je32_to_cpu(ri->atime));
- inode->i_ctime = ITIME(je32_to_cpu(ri->ctime));
- inode->i_mtime = ITIME(je32_to_cpu(ri->mtime));
+ inode_set_atime_to_ts(inode, ITIME(je32_to_cpu(ri->atime)));
+ inode_set_ctime_to_ts(inode, ITIME(je32_to_cpu(ri->ctime)));
+ inode_set_mtime_to_ts(inode, ITIME(je32_to_cpu(ri->mtime)));
inode->i_mode = jemode_to_cpu(ri->mode);
i_uid_write(inode, je16_to_cpu(ri->uid));
i_gid_write(inode, je16_to_cpu(ri->gid));
@@ -190,19 +190,19 @@ int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
return 0;
}
-int jffs2_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
+int jffs2_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
struct iattr *iattr)
{
struct inode *inode = d_inode(dentry);
int rc;
- rc = setattr_prepare(&init_user_ns, dentry, iattr);
+ rc = setattr_prepare(&nop_mnt_idmap, dentry, iattr);
if (rc)
return rc;
rc = jffs2_do_setattr(inode, iattr);
if (!rc && (iattr->ia_valid & ATTR_MODE))
- rc = posix_acl_chmod(&init_user_ns, dentry, inode->i_mode);
+ rc = posix_acl_chmod(&nop_mnt_idmap, dentry, inode->i_mode);
return rc;
}
@@ -265,7 +265,7 @@ struct inode *jffs2_iget(struct super_block *sb, unsigned long ino)
inode = iget_locked(sb, ino);
if (!inode)
return ERR_PTR(-ENOMEM);
- if (!(inode->i_state & I_NEW))
+ if (!(inode_state_read_once(inode) & I_NEW))
return inode;
f = JFFS2_INODE_INFO(inode);
@@ -282,9 +282,9 @@ struct inode *jffs2_iget(struct super_block *sb, unsigned long ino)
i_uid_write(inode, je16_to_cpu(latest_node.uid));
i_gid_write(inode, je16_to_cpu(latest_node.gid));
inode->i_size = je32_to_cpu(latest_node.isize);
- inode->i_atime = ITIME(je32_to_cpu(latest_node.atime));
- inode->i_mtime = ITIME(je32_to_cpu(latest_node.mtime));
- inode->i_ctime = ITIME(je32_to_cpu(latest_node.ctime));
+ inode_set_atime_to_ts(inode, ITIME(je32_to_cpu(latest_node.atime)));
+ inode_set_mtime_to_ts(inode, ITIME(je32_to_cpu(latest_node.mtime)));
+ inode_set_ctime_to_ts(inode, ITIME(je32_to_cpu(latest_node.ctime)));
set_nlink(inode, f->inocache->pino_nlink);
@@ -373,7 +373,7 @@ void jffs2_dirty_inode(struct inode *inode, int flags)
{
struct iattr iattr;
- if (!(inode->i_state & I_DIRTY_DATASYNC)) {
+ if (!(inode_state_read_once(inode) & I_DIRTY_DATASYNC)) {
jffs2_dbg(2, "%s(): not calling setattr() for ino #%lu\n",
__func__, inode->i_ino);
return;
@@ -386,9 +386,9 @@ void jffs2_dirty_inode(struct inode *inode, int flags)
iattr.ia_mode = inode->i_mode;
iattr.ia_uid = inode->i_uid;
iattr.ia_gid = inode->i_gid;
- iattr.ia_atime = inode->i_atime;
- iattr.ia_mtime = inode->i_mtime;
- iattr.ia_ctime = inode->i_ctime;
+ iattr.ia_atime = inode_get_atime(inode);
+ iattr.ia_mtime = inode_get_mtime(inode);
+ iattr.ia_ctime = inode_get_ctime(inode);
jffs2_do_setattr(inode, &iattr);
}
@@ -403,7 +403,7 @@ int jffs2_do_remount_fs(struct super_block *sb, struct fs_context *fc)
/* We stop if it was running, then restart if it needs to.
This also catches the case where it was stopped and this
is just a remount to restart it.
- Flush the writebuffer, if neccecary, else we loose it */
+ Flush the writebuffer, if necessary, else we loose it */
if (!sb_rdonly(sb)) {
jffs2_stop_garbage_collect_thread(c);
mutex_lock(&c->alloc_sem);
@@ -475,8 +475,8 @@ struct inode *jffs2_new_inode (struct inode *dir_i, umode_t mode, struct jffs2_r
inode->i_mode = jemode_to_cpu(ri->mode);
i_gid_write(inode, je16_to_cpu(ri->gid));
i_uid_write(inode, je16_to_cpu(ri->uid));
- inode->i_atime = inode->i_ctime = inode->i_mtime = current_time(inode);
- ri->atime = ri->mtime = ri->ctime = cpu_to_je32(I_SEC(inode->i_mtime));
+ simple_inode_init_ts(inode);
+ ri->atime = ri->mtime = ri->ctime = cpu_to_je32(I_SEC(inode_get_mtime(inode)));
inode->i_blocks = 0;
inode->i_size = 0;
diff --git a/fs/jffs2/gc.c b/fs/jffs2/gc.c
index 5c6602f3c189..1b833bbffcf5 100644
--- a/fs/jffs2/gc.c
+++ b/fs/jffs2/gc.c
@@ -82,7 +82,7 @@ again:
nextlist = &c->erasable_list;
} else if (!list_empty(&c->erasable_pending_wbuf_list)) {
- /* There are blocks are wating for the wbuf sync */
+ /* There are blocks are waiting for the wbuf sync */
jffs2_dbg(1, "Synching wbuf in order to reuse erasable_pending_wbuf_list blocks\n");
spin_unlock(&c->erase_completion_lock);
jffs2_flush_wbuf_pad(c);
@@ -1171,7 +1171,7 @@ static int jffs2_garbage_collect_dnode(struct jffs2_sb_info *c, struct jffs2_era
uint32_t alloclen, offset, orig_end, orig_start;
int ret = 0;
unsigned char *comprbuf = NULL, *writebuf;
- struct page *page;
+ struct folio *folio;
unsigned char *pg_ptr;
memset(&ri, 0, sizeof(ri));
@@ -1317,25 +1317,25 @@ static int jffs2_garbage_collect_dnode(struct jffs2_sb_info *c, struct jffs2_era
BUG_ON(start > orig_start);
}
- /* The rules state that we must obtain the page lock *before* f->sem, so
+ /* The rules state that we must obtain the folio lock *before* f->sem, so
* drop f->sem temporarily. Since we also hold c->alloc_sem, nothing's
* actually going to *change* so we're safe; we only allow reading.
*
* It is important to note that jffs2_write_begin() will ensure that its
- * page is marked Uptodate before allocating space. That means that if we
- * end up here trying to GC the *same* page that jffs2_write_begin() is
- * trying to write out, read_cache_page() will not deadlock. */
+ * folio is marked uptodate before allocating space. That means that if we
+ * end up here trying to GC the *same* folio that jffs2_write_begin() is
+ * trying to write out, read_cache_folio() will not deadlock. */
mutex_unlock(&f->sem);
- page = read_cache_page(inode->i_mapping, start >> PAGE_SHIFT,
+ folio = read_cache_folio(inode->i_mapping, start >> PAGE_SHIFT,
__jffs2_read_folio, NULL);
- if (IS_ERR(page)) {
- pr_warn("read_cache_page() returned error: %ld\n",
- PTR_ERR(page));
+ if (IS_ERR(folio)) {
+ pr_warn("read_cache_folio() returned error: %ld\n",
+ PTR_ERR(folio));
mutex_lock(&f->sem);
- return PTR_ERR(page);
+ return PTR_ERR(folio);
}
- pg_ptr = kmap(page);
+ pg_ptr = kmap_local_folio(folio, 0);
mutex_lock(&f->sem);
offset = start;
@@ -1400,7 +1400,6 @@ static int jffs2_garbage_collect_dnode(struct jffs2_sb_info *c, struct jffs2_era
}
}
- kunmap(page);
- put_page(page);
+ folio_release_kmap(folio, pg_ptr);
return ret;
}
diff --git a/fs/jffs2/malloc.c b/fs/jffs2/malloc.c
index ce1189793288..411de8b361b2 100644
--- a/fs/jffs2/malloc.c
+++ b/fs/jffs2/malloc.c
@@ -33,27 +33,19 @@ static struct kmem_cache *xattr_ref_cache;
int __init jffs2_create_slab_caches(void)
{
- full_dnode_slab = kmem_cache_create("jffs2_full_dnode",
- sizeof(struct jffs2_full_dnode),
- 0, 0, NULL);
+ full_dnode_slab = KMEM_CACHE(jffs2_full_dnode, 0);
if (!full_dnode_slab)
goto err;
- raw_dirent_slab = kmem_cache_create("jffs2_raw_dirent",
- sizeof(struct jffs2_raw_dirent),
- 0, SLAB_HWCACHE_ALIGN, NULL);
+ raw_dirent_slab = KMEM_CACHE(jffs2_raw_dirent, SLAB_HWCACHE_ALIGN);
if (!raw_dirent_slab)
goto err;
- raw_inode_slab = kmem_cache_create("jffs2_raw_inode",
- sizeof(struct jffs2_raw_inode),
- 0, SLAB_HWCACHE_ALIGN, NULL);
+ raw_inode_slab = KMEM_CACHE(jffs2_raw_inode, SLAB_HWCACHE_ALIGN);
if (!raw_inode_slab)
goto err;
- tmp_dnode_info_slab = kmem_cache_create("jffs2_tmp_dnode",
- sizeof(struct jffs2_tmp_dnode_info),
- 0, 0, NULL);
+ tmp_dnode_info_slab = KMEM_CACHE(jffs2_tmp_dnode_info, 0);
if (!tmp_dnode_info_slab)
goto err;
@@ -63,28 +55,20 @@ int __init jffs2_create_slab_caches(void)
if (!raw_node_ref_slab)
goto err;
- node_frag_slab = kmem_cache_create("jffs2_node_frag",
- sizeof(struct jffs2_node_frag),
- 0, 0, NULL);
+ node_frag_slab = KMEM_CACHE(jffs2_node_frag, 0);
if (!node_frag_slab)
goto err;
- inode_cache_slab = kmem_cache_create("jffs2_inode_cache",
- sizeof(struct jffs2_inode_cache),
- 0, 0, NULL);
+ inode_cache_slab = KMEM_CACHE(jffs2_inode_cache, 0);
if (!inode_cache_slab)
goto err;
#ifdef CONFIG_JFFS2_FS_XATTR
- xattr_datum_cache = kmem_cache_create("jffs2_xattr_datum",
- sizeof(struct jffs2_xattr_datum),
- 0, 0, NULL);
+ xattr_datum_cache = KMEM_CACHE(jffs2_xattr_datum, 0);
if (!xattr_datum_cache)
goto err;
- xattr_ref_cache = kmem_cache_create("jffs2_xattr_ref",
- sizeof(struct jffs2_xattr_ref),
- 0, 0, NULL);
+ xattr_ref_cache = KMEM_CACHE(jffs2_xattr_ref, 0);
if (!xattr_ref_cache)
goto err;
#endif
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c
index a7bbe879cfc3..3fb9f9807b66 100644
--- a/fs/jffs2/nodemgmt.c
+++ b/fs/jffs2/nodemgmt.c
@@ -15,6 +15,7 @@
#include <linux/mtd/mtd.h>
#include <linux/compiler.h>
#include <linux/sched/signal.h>
+#include <linux/string_choices.h>
#include "nodelist.h"
#include "debug.h"
@@ -49,28 +50,31 @@ static int jffs2_rp_can_write(struct jffs2_sb_info *c)
return 0;
}
+static int jffs2_do_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
+ uint32_t *len, uint32_t sumsize);
+
/**
* jffs2_reserve_space - request physical space to write nodes to flash
* @c: superblock info
* @minsize: Minimum acceptable size of allocation
* @len: Returned value of allocation length
* @prio: Allocation type - ALLOC_{NORMAL,DELETION}
+ * @sumsize: summary size requested or JFFS2_SUMMARY_NOSUM_SIZE for no summary
+ *
+ * Requests a block of physical space on the flash.
*
- * Requests a block of physical space on the flash. Returns zero for success
- * and puts 'len' into the appropriate place, or returns -ENOSPC or other
- * error if appropriate. Doesn't return len since that's
+ * Returns: %0 for success and puts 'len' into the appropriate place,
+ * or returns -ENOSPC or other error if appropriate.
+ * Doesn't return len since that's already returned in @len.
*
- * If it returns zero, jffs2_reserve_space() also downs the per-filesystem
+ * If it returns %0, jffs2_reserve_space() also downs the per-filesystem
* allocation semaphore, to prevent more than one allocation from being
- * active at any time. The semaphore is later released by jffs2_commit_allocation()
+ * active at any time. The semaphore is later released by jffs2_commit_allocation().
*
* jffs2_reserve_space() may trigger garbage collection in order to make room
* for the requested allocation.
*/
-static int jffs2_do_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
- uint32_t *len, uint32_t sumsize);
-
int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
uint32_t *len, int prio, uint32_t sumsize)
{
@@ -314,9 +318,9 @@ static int jffs2_find_nextblock(struct jffs2_sb_info *c)
And there's no space left. At all. */
pr_crit("Argh. No free space left for GC. nr_erasing_blocks is %d. nr_free_blocks is %d. (erasableempty: %s, erasingempty: %s, erasependingempty: %s)\n",
c->nr_erasing_blocks, c->nr_free_blocks,
- list_empty(&c->erasable_list) ? "yes" : "no",
- list_empty(&c->erasing_list) ? "yes" : "no",
- list_empty(&c->erase_pending_list) ? "yes" : "no");
+ str_yes_no(list_empty(&c->erasable_list)),
+ str_yes_no(list_empty(&c->erasing_list)),
+ str_yes_no(list_empty(&c->erase_pending_list)));
return -ENOSPC;
}
@@ -488,13 +492,16 @@ static int jffs2_do_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
/**
* jffs2_add_physical_node_ref - add a physical node reference to the list
* @c: superblock info
- * @new: new node reference to add
+ * @ofs: offset in the block
* @len: length of this physical node
+ * @ic: inode cache pointer
*
* Should only be used to report nodes for which space has been allocated
* by jffs2_reserve_space.
*
* Must be called with the alloc_sem held.
+ *
+ * Returns: pointer to new node on success or -errno code on error
*/
struct jffs2_raw_node_ref *jffs2_add_physical_node_ref(struct jffs2_sb_info *c,
@@ -624,8 +631,8 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref
ref->flash_offset, jeb->used_size);
BUG();
})
- jffs2_dbg(1, "Obsoleting previously unchecked node at 0x%08x of len %x\n",
- ref_offset(ref), freed_len);
+ jffs2_dbg(1, "Obsoleting previously unchecked node at 0x%08x of len %x\n",
+ ref_offset(ref), freed_len);
jeb->unchecked_size -= freed_len;
c->unchecked_size -= freed_len;
} else {
@@ -635,8 +642,8 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref
ref->flash_offset, jeb->used_size);
BUG();
})
- jffs2_dbg(1, "Obsoleting node at 0x%08x of len %#x: ",
- ref_offset(ref), freed_len);
+ jffs2_dbg(1, "Obsoleting node at 0x%08x of len %#x: ",
+ ref_offset(ref), freed_len);
jeb->used_size -= freed_len;
c->used_size -= freed_len;
}
@@ -877,7 +884,7 @@ int jffs2_thread_should_wake(struct jffs2_sb_info *c)
jffs2_dbg(1, "%s(): nr_free_blocks %d, nr_erasing_blocks %d, dirty_size 0x%x, vdirty_blocks %d: %s\n",
__func__, c->nr_free_blocks, c->nr_erasing_blocks,
- c->dirty_size, nr_very_dirty, ret ? "yes" : "no");
+ c->dirty_size, nr_very_dirty, str_yes_no(ret));
return ret;
}
diff --git a/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h
index 921d782583d6..86ab014a349c 100644
--- a/fs/jffs2/os-linux.h
+++ b/fs/jffs2/os-linux.h
@@ -35,9 +35,9 @@ struct kvec;
#define ITIME(sec) ((struct timespec64){sec, 0})
#define JFFS2_NOW() JFFS2_CLAMP_TIME(ktime_get_real_seconds())
#define I_SEC(tv) JFFS2_CLAMP_TIME((tv).tv_sec)
-#define JFFS2_F_I_CTIME(f) I_SEC(OFNI_EDONI_2SFFJ(f)->i_ctime)
-#define JFFS2_F_I_MTIME(f) I_SEC(OFNI_EDONI_2SFFJ(f)->i_mtime)
-#define JFFS2_F_I_ATIME(f) I_SEC(OFNI_EDONI_2SFFJ(f)->i_atime)
+#define JFFS2_F_I_CTIME(f) I_SEC(inode_get_ctime(OFNI_EDONI_2SFFJ(f)))
+#define JFFS2_F_I_MTIME(f) I_SEC(inode_get_mtime(OFNI_EDONI_2SFFJ(f)))
+#define JFFS2_F_I_ATIME(f) I_SEC(inode_get_atime(OFNI_EDONI_2SFFJ(f)))
#define sleep_on_spinunlock(wq, s) \
do { \
DECLARE_WAITQUEUE(__wait, current); \
@@ -164,7 +164,7 @@ long jffs2_ioctl(struct file *, unsigned int, unsigned long);
extern const struct inode_operations jffs2_symlink_inode_operations;
/* fs.c */
-int jffs2_setattr (struct user_namespace *, struct dentry *, struct iattr *);
+int jffs2_setattr (struct mnt_idmap *, struct dentry *, struct iattr *);
int jffs2_do_setattr (struct inode *, struct iattr *);
struct inode *jffs2_iget(struct super_block *, unsigned long);
void jffs2_evict_inode (struct inode *);
diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c
index 03b4f99614be..f987f78a894e 100644
--- a/fs/jffs2/readinode.c
+++ b/fs/jffs2/readinode.c
@@ -72,7 +72,7 @@ static int check_node_data(struct jffs2_sb_info *c, struct jffs2_tmp_dnode_info
if (err != -EOPNOTSUPP)
JFFS2_WARNING("MTD point failed: error code %d.\n", err);
} else
- pointed = 1; /* succefully pointed to device */
+ pointed = 1; /* successfully pointed to device */
#endif
if (!pointed) {
diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c
index 29671e33a171..62879c218d4b 100644
--- a/fs/jffs2/scan.c
+++ b/fs/jffs2/scan.c
@@ -256,7 +256,9 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
jffs2_dbg(1, "%s(): Skipping %d bytes in nextblock to ensure page alignment\n",
__func__, skip);
- jffs2_prealloc_raw_node_refs(c, c->nextblock, 1);
+ ret = jffs2_prealloc_raw_node_refs(c, c->nextblock, 1);
+ if (ret)
+ goto out;
jffs2_scan_dirty_space(c, c->nextblock, skip);
}
#endif
diff --git a/fs/jffs2/security.c b/fs/jffs2/security.c
index aef5522551db..437f3a2c1b54 100644
--- a/fs/jffs2/security.c
+++ b/fs/jffs2/security.c
@@ -57,7 +57,7 @@ static int jffs2_security_getxattr(const struct xattr_handler *handler,
}
static int jffs2_security_setxattr(const struct xattr_handler *handler,
- struct user_namespace *mnt_userns,
+ struct mnt_idmap *idmap,
struct dentry *unused, struct inode *inode,
const char *name, const void *buffer,
size_t size, int flags)
diff --git a/fs/jffs2/summary.c b/fs/jffs2/summary.c
index 4fe64519870f..d83372d3e1a0 100644
--- a/fs/jffs2/summary.c
+++ b/fs/jffs2/summary.c
@@ -858,7 +858,10 @@ int jffs2_sum_write_sumnode(struct jffs2_sb_info *c)
spin_unlock(&c->erase_completion_lock);
jeb = c->nextblock;
- jffs2_prealloc_raw_node_refs(c, jeb, 1);
+ ret = jffs2_prealloc_raw_node_refs(c, jeb, 1);
+
+ if (ret)
+ goto out;
if (!c->summary->sum_num || !c->summary->sum_list_head) {
JFFS2_WARNING("Empty summary info!!!\n");
@@ -872,6 +875,8 @@ int jffs2_sum_write_sumnode(struct jffs2_sb_info *c)
datasize += padsize;
ret = jffs2_sum_write_data(c, jeb, infosize, datasize, padsize);
+
+out:
spin_lock(&c->erase_completion_lock);
return ret;
}
diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
index 7ea37f49f1e1..4545f885c41e 100644
--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -58,6 +58,7 @@ static void jffs2_i_init_once(void *foo)
struct jffs2_inode_info *f = foo;
mutex_init(&f->sem);
+ f->target = NULL;
inode_init_once(&f->vfs_inode);
}
@@ -150,6 +151,7 @@ static struct dentry *jffs2_get_parent(struct dentry *child)
}
static const struct export_operations jffs2_export_ops = {
+ .encode_fh = generic_encode_ino32_fh,
.get_parent = jffs2_get_parent,
.fh_to_dentry = jffs2_fh_to_dentry,
.fh_to_parent = jffs2_fh_to_parent,
@@ -386,7 +388,7 @@ static int __init init_jffs2_fs(void)
jffs2_inode_cachep = kmem_cache_create("jffs2_i",
sizeof(struct jffs2_inode_info),
0, (SLAB_RECLAIM_ACCOUNT|
- SLAB_MEM_SPREAD|SLAB_ACCOUNT),
+ SLAB_ACCOUNT),
jffs2_i_init_once);
if (!jffs2_inode_cachep) {
pr_err("error: Failed to initialise inode cache\n");
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index 4061e0ba7010..bb815a002984 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -584,7 +584,7 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad)
size_t retlen;
/* Nothing to do if not write-buffering the flash. In particular, we shouldn't
- del_timer() the timer we never initialised. */
+ call timer_delete() on the timer we never initialised. */
if (!jffs2_is_writebuffered(c))
return 0;
diff --git a/fs/jffs2/xattr.c b/fs/jffs2/xattr.c
index da3e18503c65..defb4162c3d5 100644
--- a/fs/jffs2/xattr.c
+++ b/fs/jffs2/xattr.c
@@ -772,10 +772,10 @@ void jffs2_clear_xattr_subsystem(struct jffs2_sb_info *c)
}
#define XREF_TMPHASH_SIZE (128)
-void jffs2_build_xattr_subsystem(struct jffs2_sb_info *c)
+int jffs2_build_xattr_subsystem(struct jffs2_sb_info *c)
{
struct jffs2_xattr_ref *ref, *_ref;
- struct jffs2_xattr_ref *xref_tmphash[XREF_TMPHASH_SIZE];
+ struct jffs2_xattr_ref **xref_tmphash;
struct jffs2_xattr_datum *xd, *_xd;
struct jffs2_inode_cache *ic;
struct jffs2_raw_node_ref *raw;
@@ -784,9 +784,12 @@ void jffs2_build_xattr_subsystem(struct jffs2_sb_info *c)
BUG_ON(!(c->flags & JFFS2_SB_FLAG_BUILDING));
+ xref_tmphash = kcalloc(XREF_TMPHASH_SIZE,
+ sizeof(struct jffs2_xattr_ref *), GFP_KERNEL);
+ if (!xref_tmphash)
+ return -ENOMEM;
+
/* Phase.1 : Merge same xref */
- for (i=0; i < XREF_TMPHASH_SIZE; i++)
- xref_tmphash[i] = NULL;
for (ref=c->xref_temp; ref; ref=_ref) {
struct jffs2_xattr_ref *tmp;
@@ -884,6 +887,8 @@ void jffs2_build_xattr_subsystem(struct jffs2_sb_info *c)
"%u of xref (%u dead, %u orphan) found.\n",
xdatum_count, xdatum_unchecked_count, xdatum_orphan_count,
xref_count, xref_dead_count, xref_orphan_count);
+ kfree(xref_tmphash);
+ return 0;
}
struct jffs2_xattr_datum *jffs2_setup_xattr_datum(struct jffs2_sb_info *c,
@@ -915,21 +920,18 @@ struct jffs2_xattr_datum *jffs2_setup_xattr_datum(struct jffs2_sb_info *c,
* do_jffs2_setxattr(inode, xprefix, xname, buffer, size, flags)
* is an implementation of setxattr handler on jffs2.
* -------------------------------------------------- */
-const struct xattr_handler *jffs2_xattr_handlers[] = {
+const struct xattr_handler * const jffs2_xattr_handlers[] = {
&jffs2_user_xattr_handler,
#ifdef CONFIG_JFFS2_FS_SECURITY
&jffs2_security_xattr_handler,
#endif
-#ifdef CONFIG_JFFS2_FS_POSIX_ACL
- &posix_acl_access_xattr_handler,
- &posix_acl_default_xattr_handler,
-#endif
&jffs2_trusted_xattr_handler,
NULL
};
-static const struct xattr_handler *xprefix_to_handler(int xprefix) {
- const struct xattr_handler *ret;
+static const char *jffs2_xattr_prefix(int xprefix, struct dentry *dentry)
+{
+ const struct xattr_handler *ret = NULL;
switch (xprefix) {
case JFFS2_XPREFIX_USER:
@@ -942,20 +944,23 @@ static const struct xattr_handler *xprefix_to_handler(int xprefix) {
#endif
#ifdef CONFIG_JFFS2_FS_POSIX_ACL
case JFFS2_XPREFIX_ACL_ACCESS:
- ret = &posix_acl_access_xattr_handler;
+ ret = &nop_posix_acl_access;
break;
case JFFS2_XPREFIX_ACL_DEFAULT:
- ret = &posix_acl_default_xattr_handler;
+ ret = &nop_posix_acl_default;
break;
#endif
case JFFS2_XPREFIX_TRUSTED:
ret = &jffs2_trusted_xattr_handler;
break;
default:
- ret = NULL;
- break;
+ return NULL;
}
- return ret;
+
+ if (!xattr_handler_can_list(ret, dentry))
+ return NULL;
+
+ return xattr_prefix(ret);
}
ssize_t jffs2_listxattr(struct dentry *dentry, char *buffer, size_t size)
@@ -966,7 +971,6 @@ ssize_t jffs2_listxattr(struct dentry *dentry, char *buffer, size_t size)
struct jffs2_inode_cache *ic = f->inocache;
struct jffs2_xattr_ref *ref, **pref;
struct jffs2_xattr_datum *xd;
- const struct xattr_handler *xhandle;
const char *prefix;
ssize_t prefix_len, len, rc;
int retry = 0;
@@ -998,10 +1002,10 @@ ssize_t jffs2_listxattr(struct dentry *dentry, char *buffer, size_t size)
goto out;
}
}
- xhandle = xprefix_to_handler(xd->xprefix);
- if (!xhandle || (xhandle->list && !xhandle->list(dentry)))
+
+ prefix = jffs2_xattr_prefix(xd->xprefix, dentry);
+ if (!prefix)
continue;
- prefix = xhandle->prefix ?: xhandle->name;
prefix_len = strlen(prefix);
rc = prefix_len + xd->name_len + 1;
@@ -1106,6 +1110,9 @@ int do_jffs2_setxattr(struct inode *inode, int xprefix, const char *xname,
return rc;
request = PAD(sizeof(struct jffs2_raw_xattr) + strlen(xname) + 1 + size);
+ if (request > c->sector_size - c->cleanmarker_size)
+ return -ERANGE;
+
rc = jffs2_reserve_space(c, request, &length,
ALLOC_NORMAL, JFFS2_SUMMARY_XATTR_SIZE);
if (rc) {
diff --git a/fs/jffs2/xattr.h b/fs/jffs2/xattr.h
index 720007b2fd65..7e7de093ec0a 100644
--- a/fs/jffs2/xattr.h
+++ b/fs/jffs2/xattr.h
@@ -71,7 +71,7 @@ static inline int is_xattr_ref_dead(struct jffs2_xattr_ref *ref)
#ifdef CONFIG_JFFS2_FS_XATTR
extern void jffs2_init_xattr_subsystem(struct jffs2_sb_info *c);
-extern void jffs2_build_xattr_subsystem(struct jffs2_sb_info *c);
+extern int jffs2_build_xattr_subsystem(struct jffs2_sb_info *c);
extern void jffs2_clear_xattr_subsystem(struct jffs2_sb_info *c);
extern struct jffs2_xattr_datum *jffs2_setup_xattr_datum(struct jffs2_sb_info *c,
@@ -94,7 +94,7 @@ extern int do_jffs2_getxattr(struct inode *inode, int xprefix, const char *xname
extern int do_jffs2_setxattr(struct inode *inode, int xprefix, const char *xname,
const char *buffer, size_t size, int flags);
-extern const struct xattr_handler *jffs2_xattr_handlers[];
+extern const struct xattr_handler * const jffs2_xattr_handlers[];
extern const struct xattr_handler jffs2_user_xattr_handler;
extern const struct xattr_handler jffs2_trusted_xattr_handler;
@@ -103,7 +103,7 @@ extern ssize_t jffs2_listxattr(struct dentry *, char *, size_t);
#else
#define jffs2_init_xattr_subsystem(c)
-#define jffs2_build_xattr_subsystem(c)
+#define jffs2_build_xattr_subsystem(c) (0)
#define jffs2_clear_xattr_subsystem(c)
#define jffs2_xattr_do_crccheck_inode(c, ic)
diff --git a/fs/jffs2/xattr_trusted.c b/fs/jffs2/xattr_trusted.c
index cc3f24883e7d..b7c5da2d89bd 100644
--- a/fs/jffs2/xattr_trusted.c
+++ b/fs/jffs2/xattr_trusted.c
@@ -25,7 +25,7 @@ static int jffs2_trusted_getxattr(const struct xattr_handler *handler,
}
static int jffs2_trusted_setxattr(const struct xattr_handler *handler,
- struct user_namespace *mnt_userns,
+ struct mnt_idmap *idmap,
struct dentry *unused, struct inode *inode,
const char *name, const void *buffer,
size_t size, int flags)
diff --git a/fs/jffs2/xattr_user.c b/fs/jffs2/xattr_user.c
index fb945977c013..f64edce4927b 100644
--- a/fs/jffs2/xattr_user.c
+++ b/fs/jffs2/xattr_user.c
@@ -25,7 +25,7 @@ static int jffs2_user_getxattr(const struct xattr_handler *handler,
}
static int jffs2_user_setxattr(const struct xattr_handler *handler,
- struct user_namespace *mnt_userns,
+ struct mnt_idmap *idmap,
struct dentry *unused, struct inode *inode,
const char *name, const void *buffer,
size_t size, int flags)
generated by cgit (git 2.34.1) at 2025-12-25 13:54:15 +0000