diff options
| author | David Howells <dhowells@redhat.com> | 2008-02-07 11:15:35 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-07 19:42:27 +0300 |
| commit | 52fcf7032935b33158e3998ed399cac97447ab8d (patch) | |
| tree | 65d15b7541614ff52e76cabf6c7ac01ac0d95686 /fs/ext2/super.c | |
| parent | 298384cd7929a3a14d7b116095973f0d02f5d09e (diff) | |
| download | linux-52fcf7032935b33158e3998ed399cac97447ab8d.tar.xz | |
iget: stop EXT2 from using iget() and read_inode()
Stop the EXT2 filesystem from using iget() and read_inode(). Replace
ext2_read_inode() with ext2_iget(), and call that instead of iget().
ext2_iget() then uses iget_locked() directly and returns a proper error code
instead of an inode in the event of an error.
ext2_fill_super() returns any error incurred when getting the root inode
instead of EINVAL.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: <linux-ext4@vger.kernel.org>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ext2/super.c')
| -rw-r--r-- | fs/ext2/super.c | 32 |
1 files changed, 18 insertions, 14 deletions
diff --git a/fs/ext2/super.c b/fs/ext2/super.c index 1ba18b72d43a..22f1010bf79f 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -296,7 +296,6 @@ static ssize_t ext2_quota_write(struct super_block *sb, int type, const char *da static const struct super_operations ext2_sops = { .alloc_inode = ext2_alloc_inode, .destroy_inode = ext2_destroy_inode, - .read_inode = ext2_read_inode, .write_inode = ext2_write_inode, .delete_inode = ext2_delete_inode, .put_super = ext2_put_super, @@ -326,11 +325,10 @@ static struct inode *ext2_nfs_get_inode(struct super_block *sb, * it might be "neater" to call ext2_get_inode first and check * if the inode is valid..... */ - inode = iget(sb, ino); - if (inode == NULL) - return ERR_PTR(-ENOMEM); - if (is_bad_inode(inode) || - (generation && inode->i_generation != generation)) { + inode = ext2_iget(sb, ino); + if (IS_ERR(inode)) + return ERR_CAST(inode); + if (generation && inode->i_generation != generation) { /* we didn't find the right inode.. */ iput(inode); return ERR_PTR(-ESTALE); @@ -746,6 +744,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent) unsigned long logic_sb_block; unsigned long offset = 0; unsigned long def_mount_opts; + long ret = -EINVAL; int blocksize = BLOCK_SIZE; int db_count; int i, j; @@ -1041,19 +1040,24 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent) sb->s_op = &ext2_sops; sb->s_export_op = &ext2_export_ops; sb->s_xattr = ext2_xattr_handlers; - root = iget(sb, EXT2_ROOT_INO); - sb->s_root = d_alloc_root(root); - if (!sb->s_root) { - iput(root); - printk(KERN_ERR "EXT2-fs: get root inode failed\n"); + root = ext2_iget(sb, EXT2_ROOT_INO); + if (IS_ERR(root)) { + ret = PTR_ERR(root); goto failed_mount3; } if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) { - dput(sb->s_root); - sb->s_root = NULL; + iput(root); printk(KERN_ERR "EXT2-fs: corrupt root inode, run e2fsck\n"); goto failed_mount3; } + + sb->s_root = d_alloc_root(root); + if (!sb->s_root) { + iput(root); + printk(KERN_ERR "EXT2-fs: get root inode failed\n"); + ret = -ENOMEM; + goto failed_mount3; + } if (EXT2_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) ext2_warning(sb, __FUNCTION__, "mounting ext3 filesystem as ext2"); @@ -1080,7 +1084,7 @@ failed_mount: failed_sbi: sb->s_fs_info = NULL; kfree(sbi); - return -EINVAL; + return ret; } static void ext2_commit_super (struct super_block * sb, |