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| author | Chandra Seetharaman <sekharan@us.ibm.com> | 2013-07-19 17:32:55 -0500 |
|---|---|---|
| committer | Ben Myers <bpm@sgi.com> | 2013-07-22 14:10:53 -0500 |
| commit | 0102629776a2f5c3bd9c5dc0ef77956c60255074 (patch) | |
| tree | c976f6d51f00c53047eb81d39d69b446b30d069c /fs/xfs/xfs_mount.c | |
| parent | 297aa63769e6ae06b7db97eb76c9211beeb32c69 (diff) | |
| download | linux-0102629776a2f5c3bd9c5dc0ef77956c60255074.tar.bz2 | |
xfs: Initialize all quota inodes to be NULLFSINO
mkfs doesn't initialize the quota inodes to NULLFSINO as it does for the
other internal inodes. This leads to two in-core values (0 and NULLFSINO)
to be checked against, to make sure if a quota inode is valid.
Solve that problem by initializing the in-core values of all quotaino
values to NULLFSINO if they are 0 in the disk.
Note that these values are not written back to on-disk superblock unless
some quota is enabled on the filesystem. Even in that case sb_pquotino is
written to disk only if the on-disk superblock supports pquotino
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_mount.c')
| -rw-r--r-- | fs/xfs/xfs_mount.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index 2b0ba3581656..7263e1bb59f7 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -572,6 +572,24 @@ out_unwind: static void xfs_sb_quota_from_disk(struct xfs_sb *sbp) { + /* + * older mkfs doesn't initialize quota inodes to NULLFSINO. This + * leads to in-core values having two different values for a quota + * inode to be invalid: 0 and NULLFSINO. Change it to a single value + * NULLFSINO. + * + * Note that this change affect only the in-core values. These + * values are not written back to disk unless any quota information + * is written to the disk. Even in that case, sb_pquotino field is + * not written to disk unless the superblock supports pquotino. + */ + if (sbp->sb_uquotino == 0) + sbp->sb_uquotino = NULLFSINO; + if (sbp->sb_gquotino == 0) + sbp->sb_gquotino = NULLFSINO; + if (sbp->sb_pquotino == 0) + sbp->sb_pquotino = NULLFSINO; + if (sbp->sb_qflags & XFS_OQUOTA_ENFD) sbp->sb_qflags |= (sbp->sb_qflags & XFS_PQUOTA_ACCT) ? XFS_PQUOTA_ENFD : XFS_GQUOTA_ENFD; |