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-rw-r--r--fs/ext3/super.c70
1 files changed, 37 insertions, 33 deletions
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index f8a5266..a60cc6e 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -58,7 +58,7 @@ static int ext3_sync_fs(struct super_block *sb, int wait);
static const char *ext3_decode_error(struct super_block * sb, int errno,
char nbuf[16]);
static int ext3_remount (struct super_block * sb, int * flags, char * data);
-static int ext3_statfs (struct super_block * sb, struct kstatfs * buf);
+static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf);
static void ext3_unlockfs(struct super_block *sb);
static void ext3_write_super (struct super_block * sb);
static void ext3_write_super_lockfs(struct super_block *sb);
@@ -499,20 +499,21 @@ static void ext3_clear_inode(struct inode *inode)
{
struct ext3_block_alloc_info *rsv = EXT3_I(inode)->i_block_alloc_info;
#ifdef CONFIG_EXT3_FS_POSIX_ACL
- if (EXT3_I(inode)->i_acl &&
- EXT3_I(inode)->i_acl != EXT3_ACL_NOT_CACHED) {
- posix_acl_release(EXT3_I(inode)->i_acl);
- EXT3_I(inode)->i_acl = EXT3_ACL_NOT_CACHED;
- }
- if (EXT3_I(inode)->i_default_acl &&
- EXT3_I(inode)->i_default_acl != EXT3_ACL_NOT_CACHED) {
- posix_acl_release(EXT3_I(inode)->i_default_acl);
- EXT3_I(inode)->i_default_acl = EXT3_ACL_NOT_CACHED;
- }
+ if (EXT3_I(inode)->i_acl &&
+ EXT3_I(inode)->i_acl != EXT3_ACL_NOT_CACHED) {
+ posix_acl_release(EXT3_I(inode)->i_acl);
+ EXT3_I(inode)->i_acl = EXT3_ACL_NOT_CACHED;
+ }
+ if (EXT3_I(inode)->i_default_acl &&
+ EXT3_I(inode)->i_default_acl != EXT3_ACL_NOT_CACHED) {
+ posix_acl_release(EXT3_I(inode)->i_default_acl);
+ EXT3_I(inode)->i_default_acl = EXT3_ACL_NOT_CACHED;
+ }
#endif
ext3_discard_reservation(inode);
EXT3_I(inode)->i_block_alloc_info = NULL;
- kfree(rsv);
+ if (unlikely(rsv))
+ kfree(rsv);
}
static inline void ext3_show_quota_options(struct seq_file *seq, struct super_block *sb)
@@ -1579,9 +1580,6 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
goto failed_mount;
}
- percpu_counter_init(&sbi->s_freeblocks_counter);
- percpu_counter_init(&sbi->s_freeinodes_counter);
- percpu_counter_init(&sbi->s_dirs_counter);
bgl_lock_init(&sbi->s_blockgroup_lock);
for (i = 0; i < db_count; i++) {
@@ -1601,6 +1599,14 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
sbi->s_gdb_count = db_count;
get_random_bytes(&sbi->s_next_generation, sizeof(u32));
spin_lock_init(&sbi->s_next_gen_lock);
+
+ percpu_counter_init(&sbi->s_freeblocks_counter,
+ ext3_count_free_blocks(sb));
+ percpu_counter_init(&sbi->s_freeinodes_counter,
+ ext3_count_free_inodes(sb));
+ percpu_counter_init(&sbi->s_dirs_counter,
+ ext3_count_dirs(sb));
+
/* per fileystem reservation list head & lock */
spin_lock_init(&sbi->s_rsv_window_lock);
sbi->s_rsv_window_root = RB_ROOT;
@@ -1639,16 +1645,16 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
if (!test_opt(sb, NOLOAD) &&
EXT3_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
if (ext3_load_journal(sb, es, journal_devnum))
- goto failed_mount2;
+ goto failed_mount3;
} else if (journal_inum) {
if (ext3_create_journal(sb, es, journal_inum))
- goto failed_mount2;
+ goto failed_mount3;
} else {
if (!silent)
printk (KERN_ERR
"ext3: No journal on filesystem on %s\n",
sb->s_id);
- goto failed_mount2;
+ goto failed_mount3;
}
/* We have now updated the journal if required, so we can
@@ -1671,7 +1677,7 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
(sbi->s_journal, 0, 0, JFS_FEATURE_INCOMPAT_REVOKE)) {
printk(KERN_ERR "EXT3-fs: Journal does not support "
"requested data journaling mode\n");
- goto failed_mount3;
+ goto failed_mount4;
}
default:
break;
@@ -1694,13 +1700,13 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
if (!sb->s_root) {
printk(KERN_ERR "EXT3-fs: get root inode failed\n");
iput(root);
- goto failed_mount3;
+ goto failed_mount4;
}
if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) {
dput(sb->s_root);
sb->s_root = NULL;
printk(KERN_ERR "EXT3-fs: corrupt root inode, run e2fsck\n");
- goto failed_mount3;
+ goto failed_mount4;
}
ext3_setup_super (sb, es, sb->s_flags & MS_RDONLY);
@@ -1723,13 +1729,6 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
test_opt(sb,DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA ? "ordered":
"writeback");
- percpu_counter_mod(&sbi->s_freeblocks_counter,
- ext3_count_free_blocks(sb));
- percpu_counter_mod(&sbi->s_freeinodes_counter,
- ext3_count_free_inodes(sb));
- percpu_counter_mod(&sbi->s_dirs_counter,
- ext3_count_dirs(sb));
-
lock_kernel();
return 0;
@@ -1739,8 +1738,12 @@ cantfind_ext3:
sb->s_id);
goto failed_mount;
-failed_mount3:
+failed_mount4:
journal_destroy(sbi->s_journal);
+failed_mount3:
+ percpu_counter_destroy(&sbi->s_freeblocks_counter);
+ percpu_counter_destroy(&sbi->s_freeinodes_counter);
+ percpu_counter_destroy(&sbi->s_dirs_counter);
failed_mount2:
for (i = 0; i < db_count; i++)
brelse(sbi->s_group_desc[i]);
@@ -2318,8 +2321,9 @@ restore_opts:
return err;
}
-static int ext3_statfs (struct super_block * sb, struct kstatfs * buf)
+static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf)
{
+ struct super_block *sb = dentry->d_sb;
struct ext3_sb_info *sbi = EXT3_SB(sb);
struct ext3_super_block *es = sbi->s_es;
unsigned long overhead;
@@ -2646,10 +2650,10 @@ out:
#endif
-static struct super_block *ext3_get_sb(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data)
+static int ext3_get_sb(struct file_system_type *fs_type,
+ int flags, const char *dev_name, void *data, struct vfsmount *mnt)
{
- return get_sb_bdev(fs_type, flags, dev_name, data, ext3_fill_super);
+ return get_sb_bdev(fs_type, flags, dev_name, data, ext3_fill_super, mnt);
}
static struct file_system_type ext3_fs_type = {
generated by cgit v1.1 at 2024-06-18 10:43:01 +0000