xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

xfs: move inode extent size hint validation to libxfs

Browse Source 
Extent size hint validation is used by scrub to decide if there's an
error, and it will be used by repair to decide to remove the hint.
Since these use the same validation functions, move them to libxfs.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
This commit is contained in:
Darrick J. Wong
2018-03-23 10:06:55 -07:00
parent 1b44a6aecc
commit 8bb82bc12a
3 changed files with 122 additions and 88 deletions
Download Patch File Download Diff File Expand all files Collapse all files

100
fs/xfs/scrub/inode.c
View File

@@ -89,12 +89,7 @@ out:
/* Inode core */
/*
* Validate di_extsize hint.
*
* The rules are documented at xfs_ioctl_setattr_check_extsize().
* These functions must be kept in sync with each other.
*/
/* Validate di_extsize hint. */
STATIC void
xfs_scrub_inode_extsize(
struct xfs_scrub_context *sc,
@@ -103,52 +98,12 @@ xfs_scrub_inode_extsize(
uint16_t mode,
uint16_t flags)
{
struct xfs_mount *mp = sc->mp;
bool rt_flag;
bool hint_flag;
bool inherit_flag;
uint32_t extsize;
uint32_t extsize_bytes;
uint32_t blocksize_bytes;
xfs_failaddr_t fa;
rt_flag = (flags & XFS_DIFLAG_REALTIME);
hint_flag = (flags & XFS_DIFLAG_EXTSIZE);
inherit_flag = (flags & XFS_DIFLAG_EXTSZINHERIT);
extsize = be32_to_cpu(dip->di_extsize);
extsize_bytes = XFS_FSB_TO_B(sc->mp, extsize);
if (rt_flag)
blocksize_bytes = mp->m_sb.sb_rextsize << mp->m_sb.sb_blocklog;
else
blocksize_bytes = mp->m_sb.sb_blocksize;
if ((hint_flag || inherit_flag) && !(S_ISDIR(mode) || S_ISREG(mode)))
goto bad;
if (hint_flag && !S_ISREG(mode))
goto bad;
if (inherit_flag && !S_ISDIR(mode))
goto bad;
if ((hint_flag || inherit_flag) && extsize == 0)
goto bad;
if (!(hint_flag || inherit_flag) && extsize != 0)
goto bad;
if (extsize_bytes % blocksize_bytes)
goto bad;
if (extsize > MAXEXTLEN)
goto bad;
if (!rt_flag && extsize > mp->m_sb.sb_agblocks / 2)
goto bad;
return;
bad:
xfs_scrub_ino_set_corrupt(sc, ino);
fa = xfs_inode_validate_extsize(sc->mp, be32_to_cpu(dip->di_extsize),
mode, flags);
if (fa)
xfs_scrub_ino_set_corrupt(sc, ino);
}
/*
@@ -166,44 +121,13 @@ xfs_scrub_inode_cowextsize(
uint16_t flags,
uint64_t flags2)
{
struct xfs_mount *mp = sc->mp;
bool rt_flag;
bool hint_flag;
uint32_t extsize;
uint32_t extsize_bytes;
xfs_failaddr_t fa;
rt_flag = (flags & XFS_DIFLAG_REALTIME);
hint_flag = (flags2 & XFS_DIFLAG2_COWEXTSIZE);
extsize = be32_to_cpu(dip->di_cowextsize);
extsize_bytes = XFS_FSB_TO_B(sc->mp, extsize);
if (hint_flag && !xfs_sb_version_hasreflink(&mp->m_sb))
goto bad;
if (hint_flag && !(S_ISDIR(mode) || S_ISREG(mode)))
goto bad;
if (hint_flag && extsize == 0)
goto bad;
if (!hint_flag && extsize != 0)
goto bad;
if (hint_flag && rt_flag)
goto bad;
if (extsize_bytes % mp->m_sb.sb_blocksize)
goto bad;
if (extsize > MAXEXTLEN)
goto bad;
if (extsize > mp->m_sb.sb_agblocks / 2)
goto bad;
return;
bad:
xfs_scrub_ino_set_corrupt(sc, ino);
fa = xfs_inode_validate_cowextsize(sc->mp,
be32_to_cpu(dip->di_cowextsize), mode, flags,
flags2);
if (fa)
xfs_scrub_ino_set_corrupt(sc, ino);
}
/* Make sure the di_flags make sense for the inode. */