diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-12-17 12:14:33 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-12-17 12:14:33 -0800 |
| commit | 1c6b942d7d39765a81ea0577c893edaddfccad3d (patch) | |
| tree | bab0b0032f963b838e4d0ccf5c078617ceafed2f /fs | |
| parent | f3b5ad89de16f5d42e8ad36fbdf85f705c1ae051 (diff) | |
| parent | 9d5afec6b8bd46d6ed821aa1579634437f58ef1f (diff) | |
| download | linux-0-day-1c6b942d7d39765a81ea0577c893edaddfccad3d.tar.gz linux-0-day-1c6b942d7d39765a81ea0577c893edaddfccad3d.tar.xz | |
Merge tag 'ext4_for_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"Fix a regression which caused us to fail to interpret symlinks in very
ancient ext3 file system images.
Also fix two xfstests failures, one of which could cause an OOPS, plus
an additional bug fix caught by fuzz testing"
* tag 'ext4_for_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: fix crash when a directory's i_size is too small
ext4: add missing error check in __ext4_new_inode()
ext4: fix fdatasync(2) after fallocate(2) operation
ext4: support fast symlinks from ext3 file systems
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext4/extents.c | 1 | ||||
| -rw-r--r-- | fs/ext4/ialloc.c | 2 | ||||
| -rw-r--r-- | fs/ext4/inode.c | 9 | ||||
| -rw-r--r-- | fs/ext4/namei.c | 4 |
4 files changed, 16 insertions, 0 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 07bca11749d40..c941251ac0c00 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -4722,6 +4722,7 @@ retry: EXT4_INODE_EOFBLOCKS); } ext4_mark_inode_dirty(handle, inode); + ext4_update_inode_fsync_trans(handle, inode, 1); ret2 = ext4_journal_stop(handle); if (ret2) break; diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index b4267d72f2495..b32cf263750d1 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -816,6 +816,8 @@ struct inode *__ext4_new_inode(handle_t *handle, struct inode *dir, #ifdef CONFIG_EXT4_FS_POSIX_ACL struct posix_acl *p = get_acl(dir, ACL_TYPE_DEFAULT); + if (IS_ERR(p)) + return ERR_CAST(p); if (p) { int acl_size = p->a_count * sizeof(ext4_acl_entry); diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 7df2c5644e59c..534a9130f6257 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -149,6 +149,15 @@ static int ext4_meta_trans_blocks(struct inode *inode, int lblocks, */ int ext4_inode_is_fast_symlink(struct inode *inode) { + if (!(EXT4_I(inode)->i_flags & EXT4_EA_INODE_FL)) { + int ea_blocks = EXT4_I(inode)->i_file_acl ? + EXT4_CLUSTER_SIZE(inode->i_sb) >> 9 : 0; + + if (ext4_has_inline_data(inode)) + return 0; + + return (S_ISLNK(inode->i_mode) && inode->i_blocks - ea_blocks == 0); + } return S_ISLNK(inode->i_mode) && inode->i_size && (inode->i_size < EXT4_N_BLOCKS * 4); } diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 798b3ac680db1..e750d68fbcb50 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1399,6 +1399,10 @@ static struct buffer_head * ext4_find_entry (struct inode *dir, "falling back\n")); } nblocks = dir->i_size >> EXT4_BLOCK_SIZE_BITS(sb); + if (!nblocks) { + ret = NULL; + goto cleanup_and_exit; + } start = EXT4_I(dir)->i_dir_start_lookup; if (start >= nblocks) start = 0; |