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xfs: make sure to free the real-time inodes in the mount error path

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When mount fails after allocating the real-time inodes we currently leak
them.  Add a new helper to free the real-time inodes which can be used by
both the mount and unmount path.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Felix Blyakher <felixb@sgi.com>
This commit is contained in:
Christoph Hellwig 2009-02-04 09:33:58 +01:00 committed by Christoph Hellwig
parent f9057e3da7
commit b93b6e434c
3 changed files with 21 additions and 8 deletions
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15
fs/xfs/xfs_mount.c
View File

@ -1138,7 +1138,7 @@ xfs_mountfs(
error = xfs_mount_log_sb(mp, mp->m_update_flags);
if (error) {
cmn_err(CE_WARN, "XFS: failed to write sb changes");
goto out_rele_rip;
goto out_rtunmount;
}
}
@ -1147,7 +1147,7 @@ xfs_mountfs(
*/
error = XFS_QM_INIT(mp, &quotamount, &quotaflags);
if (error)
goto out_rele_rip;
goto out_rtunmount;
/*
* Finish recovering the file system. This part needed to be
@ -1157,7 +1157,7 @@ xfs_mountfs(
error = xfs_log_mount_finish(mp);
if (error) {
cmn_err(CE_WARN, "XFS: log mount finish failed");
goto out_rele_rip;
goto out_rtunmount;
}
/*
@ -1165,7 +1165,7 @@ xfs_mountfs(
*/
error = XFS_QM_MOUNT(mp, quotamount, quotaflags);
if (error)
goto out_rele_rip;
goto out_rtunmount;
/*
* Now we are mounted, reserve a small amount of unused space for
@ -1189,6 +1189,8 @@ xfs_mountfs(
return 0;
out_rtunmount:
xfs_rtunmount_inodes(mp);
out_rele_rip:
IRELE(rip);
out_log_dealloc:
@ -1219,10 +1221,7 @@ xfs_unmountfs(
*/
XFS_QM_UNMOUNT(mp);
if (mp->m_rbmip)
IRELE(mp->m_rbmip);
if (mp->m_rsumip)
IRELE(mp->m_rsumip);
xfs_rtunmount_inodes(mp);
IRELE(mp->m_rootip);
/*

10
fs/xfs/xfs_rtalloc.c
View File

@ -2288,6 +2288,16 @@ xfs_rtmount_inodes(
return 0;
}
void
xfs_rtunmount_inodes(
struct xfs_mount *mp)
{
if (mp->m_rbmip)
IRELE(mp->m_rbmip);
if (mp->m_rsumip)
IRELE(mp->m_rsumip);
}
/*
* Pick an extent for allocation at the start of a new realtime file.
* Use the sequence number stored in the atime field of the bitmap inode.

4
fs/xfs/xfs_rtalloc.h
View File

@ -108,6 +108,9 @@ xfs_rtfree_extent(
int /* error */
xfs_rtmount_init(
struct xfs_mount *mp); /* file system mount structure */
void
xfs_rtunmount_inodes(
struct xfs_mount *mp);
/*
* Get the bitmap and summary inodes into the mount structure
@ -146,6 +149,7 @@ xfs_growfs_rt(
# define xfs_growfs_rt(mp,in) (ENOSYS)
# define xfs_rtmount_init(m) (((mp)->m_sb.sb_rblocks == 0)? 0 : (ENOSYS))
# define xfs_rtmount_inodes(m) (((mp)->m_sb.sb_rblocks == 0)? 0 : (ENOSYS))
# define xfs_rtunmount_inodes(m)
#endif /* CONFIG_XFS_RT */
#endif /* __KERNEL__ */