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- Fix some uninitialized variable errors
 - Fix an incorrect check in metadata verifiers
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Merge tag 'xfs-4.18-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs fixes from Darrick Wong:

 - Fix some uninitialized variable errors

 - Fix an incorrect check in metadata verifiers

* tag 'xfs-4.18-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: properly handle free inodes in extent hint validators
  xfs: Initialize variables in xfs_alloc_get_rec before using them
This commit is contained in:
Linus Torvalds 2018-07-27 09:25:09 -07:00
parent cd3f77d74a d4a34e1655
commit f636d300cd
2 changed files with 7 additions and 4 deletions
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5
fs/xfs/libxfs/xfs_alloc.c
View file

@ -223,12 +223,13 @@ xfs_alloc_get_rec(
error = xfs_btree_get_rec(cur, &rec, stat);
if (error || !(*stat))
return error;
if (rec->alloc.ar_blockcount == 0)
goto out_bad_rec;
*bno = be32_to_cpu(rec->alloc.ar_startblock);
*len = be32_to_cpu(rec->alloc.ar_blockcount);
if (*len == 0)
goto out_bad_rec;
/* check for valid extent range, including overflow */
if (!xfs_verify_agbno(mp, agno, *bno))
goto out_bad_rec;

6
fs/xfs/libxfs/xfs_inode_buf.c
View file

@ -731,7 +731,8 @@ xfs_inode_validate_extsize(
if ((hint_flag || inherit_flag) && extsize == 0)
return __this_address;
if (!(hint_flag || inherit_flag) && extsize != 0)
/* free inodes get flags set to zero but extsize remains */
if (mode && !(hint_flag || inherit_flag) && extsize != 0)
return __this_address;
if (extsize_bytes % blocksize_bytes)
@ -777,7 +778,8 @@ xfs_inode_validate_cowextsize(
if (hint_flag && cowextsize == 0)
return __this_address;
if (!hint_flag && cowextsize != 0)
/* free inodes get flags set to zero but cowextsize remains */
if (mode && !hint_flag && cowextsize != 0)
return __this_address;
if (hint_flag && rt_flag)