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| author | Theodore Ts'o <tytso@mit.edu> | 2013-02-10 01:27:09 +0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2013-02-10 01:27:09 +0400 |
| commit | 1139575a927010390c6b38e4215a6d741b056074 (patch) | |
| tree | 0fb06dbe63ed7aaa2e14ce4c03587fd9c4f87b63 /fs/ext4/ialloc.c | |
| parent | 95eaefbdececae5e781d76d03fe7472a857c8c7a (diff) | |
| download | linux-1139575a927010390c6b38e4215a6d741b056074.tar.xz | |
ext4: start handle at the last possible moment when creating inodes
In ext4_{create,mknod,mkdir,symlink}(), don't start the journal handle
until the inode has been succesfully allocated. In order to do this,
we need to start the handle in the ext4_new_inode(). So create a new
variant of this function, ext4_new_inode_start_handle(), so the handle
can be created at the last possible minute, before we need to modify
the inode allocation bitmap block.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/ialloc.c')
| -rw-r--r-- | fs/ext4/ialloc.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index 10bd6fecc9ff..91d8fe3aced3 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -634,8 +634,10 @@ static int find_group_other(struct super_block *sb, struct inode *parent, * For other inodes, search forward from the parent directory's block * group to find a free inode. */ -struct inode *ext4_new_inode(handle_t *handle, struct inode *dir, umode_t mode, - const struct qstr *qstr, __u32 goal, uid_t *owner) +struct inode *__ext4_new_inode(handle_t *handle, struct inode *dir, + umode_t mode, const struct qstr *qstr, + __u32 goal, uid_t *owner, int handle_type, + unsigned int line_no, int nblocks) { struct super_block *sb; struct buffer_head *inode_bitmap_bh = NULL; @@ -725,6 +727,15 @@ repeat_in_this_group: "inode=%lu", ino + 1); continue; } + if (!handle) { + BUG_ON(nblocks <= 0); + handle = __ext4_journal_start_sb(dir->i_sb, line_no, + handle_type, nblocks); + if (IS_ERR(handle)) { + err = PTR_ERR(handle); + goto fail; + } + } BUFFER_TRACE(inode_bitmap_bh, "get_write_access"); err = ext4_journal_get_write_access(handle, inode_bitmap_bh); if (err) |