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| author | Al Viro <viro@zeniv.linux.org.uk> | 2008-12-30 10:03:31 +0300 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-01-01 02:07:44 +0300 |
| commit | 6b38e842bb832a3dbeb17e382404aef3c40ac5f9 (patch) | |
| tree | c36830341781bf49ded16a0d5432647979a74ad8 /fs | |
| parent | c38012daa7ad902a39a4213ba2b3fe50e81157ea (diff) | |
| download | linux-6b38e842bb832a3dbeb17e382404aef3c40ac5f9.tar.xz | |
nfsd race fixes: ext4
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext4/ialloc.c | 6 | ||||
| -rw-r--r-- | fs/ext4/namei.c | 14 |
2 files changed, 18 insertions, 2 deletions
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index 08cac9fcace2..6e6052879aa2 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -826,7 +826,10 @@ got: ext4_set_inode_flags(inode); if (IS_DIRSYNC(inode)) handle->h_sync = 1; - insert_inode_hash(inode); + if (insert_inode_locked(inode) < 0) { + err = -EINVAL; + goto fail_drop; + } spin_lock(&sbi->s_next_gen_lock); inode->i_generation = sbi->s_next_generation++; spin_unlock(&sbi->s_next_gen_lock); @@ -881,6 +884,7 @@ fail_drop: DQUOT_DROP(inode); inode->i_flags |= S_NOQUOTA; inode->i_nlink = 0; + unlock_new_inode(inode); iput(inode); brelse(bitmap_bh); return ERR_PTR(err); diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 63adcb792988..da98a9012fa5 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1693,9 +1693,11 @@ static int ext4_add_nondir(handle_t *handle, if (!err) { ext4_mark_inode_dirty(handle, inode); d_instantiate(dentry, inode); + unlock_new_inode(inode); return 0; } drop_nlink(inode); + unlock_new_inode(inode); iput(inode); return err; } @@ -1830,6 +1832,7 @@ retry: if (err) { out_clear_inode: clear_nlink(inode); + unlock_new_inode(inode); ext4_mark_inode_dirty(handle, inode); iput(inode); goto out_stop; @@ -1838,6 +1841,7 @@ out_clear_inode: ext4_update_dx_flag(dir); ext4_mark_inode_dirty(handle, dir); d_instantiate(dentry, inode); + unlock_new_inode(inode); out_stop: ext4_journal_stop(handle); if (err == -ENOSPC && ext4_should_retry_alloc(dir->i_sb, &retries)) @@ -2212,6 +2216,7 @@ retry: mapping_gfp_mask(inode->i_mapping) & ~__GFP_FS); if (err) { clear_nlink(inode); + unlock_new_inode(inode); ext4_mark_inode_dirty(handle, inode); iput(inode); goto out_stop; @@ -2262,7 +2267,14 @@ retry: ext4_inc_count(handle, inode); atomic_inc(&inode->i_count); - err = ext4_add_nondir(handle, dentry, inode); + err = ext4_add_entry(handle, dentry, inode); + if (!err) { + ext4_mark_inode_dirty(handle, inode); + d_instantiate(dentry, inode); + } else { + drop_nlink(inode); + iput(inode); + } ext4_journal_stop(handle); if (err == -ENOSPC && ext4_should_retry_alloc(dir->i_sb, &retries)) goto retry; |