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authorEric Sandeen <sandeen@redhat.com>2020-05-21 23:07:01 +0300
committerDarrick J. Wong <darrick.wong@oracle.com>2020-05-27 18:49:26 +0300
commitdf42ce64dc3eb7f01f8b601abd3881c6dddfbbaa (patch)
tree60a511d76707c5470daec2c3bf490a2d38d6b322 /fs/xfs
parente850301f0981741c47f5ee423380a2a963fce563 (diff)
downloadlinux-df42ce64dc3eb7f01f8b601abd3881c6dddfbbaa.tar.xz
xfs: allow individual quota grace period extension
The only grace period which can be set in the kernel today is for id 0, i.e. the default grace period for all users. However, setting an individual grace period is useful; for example: Alice has a soft quota of 100 inodes, and a hard quota of 200 inodes Alice uses 150 inodes, and enters a short grace period Alice really needs to use those 150 inodes past the grace period The administrator extends Alice's grace period until next Monday vfs quota users such as ext4 can do this today, with setquota -T To enable this for XFS, we simply move the timelimit assignment out from under the (id == 0) test. Default setting remains under (id == 0). Note that this now is consistent with how we set warnings. (Userspace requires updates to enable this as well; xfs_quota needs to parse new options, and setquota needs to set appropriate field flags.) Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/xfs_qm_syscalls.c48
1 files changed, 28 insertions, 20 deletions
diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c
index 9b69ce16a540..362ccec2da99 100644
--- a/fs/xfs/xfs_qm_syscalls.c
+++ b/fs/xfs/xfs_qm_syscalls.c
@@ -555,32 +555,40 @@ xfs_qm_scall_setqlim(
ddq->d_rtbwarns = cpu_to_be16(newlim->d_rt_spc_warns);
if (id == 0) {
- /*
- * Timelimits for the super user set the relative time
- * the other users can be over quota for this file system.
- * If it is zero a default is used. Ditto for the default
- * soft and hard limit values (already done, above), and
- * for warnings.
- */
- if (newlim->d_fieldmask & QC_SPC_TIMER) {
- defq->btimelimit = newlim->d_spc_timer;
- ddq->d_btimer = cpu_to_be32(newlim->d_spc_timer);
- }
- if (newlim->d_fieldmask & QC_INO_TIMER) {
- defq->itimelimit = newlim->d_ino_timer;
- ddq->d_itimer = cpu_to_be32(newlim->d_ino_timer);
- }
- if (newlim->d_fieldmask & QC_RT_SPC_TIMER) {
- defq->rtbtimelimit = newlim->d_rt_spc_timer;
- ddq->d_rtbtimer = cpu_to_be32(newlim->d_rt_spc_timer);
- }
if (newlim->d_fieldmask & QC_SPC_WARNS)
defq->bwarnlimit = newlim->d_spc_warns;
if (newlim->d_fieldmask & QC_INO_WARNS)
defq->iwarnlimit = newlim->d_ino_warns;
if (newlim->d_fieldmask & QC_RT_SPC_WARNS)
defq->rtbwarnlimit = newlim->d_rt_spc_warns;
- } else {
+ }
+
+ /*
+ * Timelimits for the super user set the relative time the other users
+ * can be over quota for this file system. If it is zero a default is
+ * used. Ditto for the default soft and hard limit values (already
+ * done, above), and for warnings.
+ *
+ * For other IDs, userspace can bump out the grace period if over
+ * the soft limit.
+ */
+ if (newlim->d_fieldmask & QC_SPC_TIMER)
+ ddq->d_btimer = cpu_to_be32(newlim->d_spc_timer);
+ if (newlim->d_fieldmask & QC_INO_TIMER)
+ ddq->d_itimer = cpu_to_be32(newlim->d_ino_timer);
+ if (newlim->d_fieldmask & QC_RT_SPC_TIMER)
+ ddq->d_rtbtimer = cpu_to_be32(newlim->d_rt_spc_timer);
+
+ if (id == 0) {
+ if (newlim->d_fieldmask & QC_SPC_TIMER)
+ defq->btimelimit = newlim->d_spc_timer;
+ if (newlim->d_fieldmask & QC_INO_TIMER)
+ defq->itimelimit = newlim->d_ino_timer;
+ if (newlim->d_fieldmask & QC_RT_SPC_TIMER)
+ defq->rtbtimelimit = newlim->d_rt_spc_timer;
+ }
+
+ if (id != 0) {
/*
* If the user is now over quota, start the timelimit.
* The user will not be 'warned'.