xfs: get rid of indirections in the quotaops implementation
Currently we call from the nicely abstracted linux quotaops into a ugly
multiplexer just to split the calls out at the same boundary again.
Rewrite the quota ops handling to remove that obfucation.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
diff --git a/fs/xfs/quota/xfs_qm.h b/fs/xfs/quota/xfs_qm.h
index 5ef08fb..933df42 100644
--- a/fs/xfs/quota/xfs_qm.h
+++ b/fs/xfs/quota/xfs_qm.h
@@ -173,6 +173,16 @@
extern int xfs_qm_dqpurge_all(xfs_mount_t *, uint);
extern void xfs_qm_dqrele_all_inodes(xfs_mount_t *, uint);
+/* quota ops */
+extern int xfs_qm_scall_trunc_qfiles(xfs_mount_t *, uint);
+extern int xfs_qm_scall_getquota(xfs_mount_t *, xfs_dqid_t, uint,
+ fs_disk_quota_t *);
+extern int xfs_qm_scall_setqlim(xfs_mount_t *, xfs_dqid_t, uint,
+ fs_disk_quota_t *);
+extern int xfs_qm_scall_getqstat(xfs_mount_t *, fs_quota_stat_t *);
+extern int xfs_qm_scall_quotaon(xfs_mount_t *, uint);
+extern int xfs_qm_scall_quotaoff(xfs_mount_t *, uint);
+
/* vop stuff */
extern int xfs_qm_vop_dqalloc(xfs_mount_t *, xfs_inode_t *,
uid_t, gid_t, prid_t, uint,
@@ -190,10 +200,6 @@
extern void xfs_qm_freelist_append(xfs_frlist_t *, xfs_dquot_t *);
extern void xfs_qm_freelist_unlink(xfs_dquot_t *);
-/* system call interface */
-extern int xfs_qm_quotactl(struct xfs_mount *, int, int,
- xfs_caddr_t);
-
#ifdef DEBUG
extern int xfs_qm_internalqcheck(xfs_mount_t *);
#else
diff --git a/fs/xfs/quota/xfs_qm_bhv.c b/fs/xfs/quota/xfs_qm_bhv.c
index bc6c5cc..63037c6 100644
--- a/fs/xfs/quota/xfs_qm_bhv.c
+++ b/fs/xfs/quota/xfs_qm_bhv.c
@@ -235,7 +235,6 @@
.xfs_dqvopchownresv = xfs_qm_vop_chown_reserve,
.xfs_dqstatvfs = xfs_qm_statvfs,
.xfs_dqsync = xfs_qm_sync,
- .xfs_quotactl = xfs_qm_quotactl,
.xfs_dqtrxops = &xfs_trans_dquot_ops,
};
EXPORT_SYMBOL(xfs_qmcore_xfs);
diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c
index 68139b3..b00c8d4 100644
--- a/fs/xfs/quota/xfs_qm_syscalls.c
+++ b/fs/xfs/quota/xfs_qm_syscalls.c
@@ -57,135 +57,16 @@
# define qdprintk(s, args...) do { } while (0)
#endif
-STATIC int xfs_qm_scall_trunc_qfiles(xfs_mount_t *, uint);
-STATIC int xfs_qm_scall_getquota(xfs_mount_t *, xfs_dqid_t, uint,
- fs_disk_quota_t *);
-STATIC int xfs_qm_scall_getqstat(xfs_mount_t *, fs_quota_stat_t *);
-STATIC int xfs_qm_scall_setqlim(xfs_mount_t *, xfs_dqid_t, uint,
- fs_disk_quota_t *);
-STATIC int xfs_qm_scall_quotaon(xfs_mount_t *, uint);
-STATIC int xfs_qm_scall_quotaoff(xfs_mount_t *, uint, boolean_t);
STATIC int xfs_qm_log_quotaoff(xfs_mount_t *, xfs_qoff_logitem_t **, uint);
STATIC int xfs_qm_log_quotaoff_end(xfs_mount_t *, xfs_qoff_logitem_t *,
uint);
-STATIC uint xfs_qm_import_flags(uint);
STATIC uint xfs_qm_export_flags(uint);
-STATIC uint xfs_qm_import_qtype_flags(uint);
STATIC uint xfs_qm_export_qtype_flags(uint);
STATIC void xfs_qm_export_dquot(xfs_mount_t *, xfs_disk_dquot_t *,
fs_disk_quota_t *);
/*
- * The main distribution switch of all XFS quotactl system calls.
- */
-int
-xfs_qm_quotactl(
- xfs_mount_t *mp,
- int cmd,
- int id,
- xfs_caddr_t addr)
-{
- int error;
-
- ASSERT(addr != NULL || cmd == Q_XQUOTASYNC);
-
- /*
- * The following commands are valid even when quotaoff.
- */
- switch (cmd) {
- case Q_XQUOTARM:
- /*
- * Truncate quota files. quota must be off.
- */
- if (XFS_IS_QUOTA_ON(mp))
- return XFS_ERROR(EINVAL);
- if (mp->m_flags & XFS_MOUNT_RDONLY)
- return XFS_ERROR(EROFS);
- return (xfs_qm_scall_trunc_qfiles(mp,
- xfs_qm_import_qtype_flags(*(uint *)addr)));
-
- case Q_XGETQSTAT:
- /*
- * Get quota status information.
- */
- return (xfs_qm_scall_getqstat(mp, (fs_quota_stat_t *)addr));
-
- case Q_XQUOTAON:
- /*
- * QUOTAON - enabling quota enforcement.
- * Quota accounting must be turned on at mount time.
- */
- if (mp->m_flags & XFS_MOUNT_RDONLY)
- return XFS_ERROR(EROFS);
- return (xfs_qm_scall_quotaon(mp,
- xfs_qm_import_flags(*(uint *)addr)));
-
- case Q_XQUOTAOFF:
- if (mp->m_flags & XFS_MOUNT_RDONLY)
- return XFS_ERROR(EROFS);
- break;
-
- case Q_XQUOTASYNC:
- return xfs_sync_inodes(mp, SYNC_DELWRI);
-
- default:
- break;
- }
-
- if (! XFS_IS_QUOTA_ON(mp))
- return XFS_ERROR(ESRCH);
-
- switch (cmd) {
- case Q_XQUOTAOFF:
- if (mp->m_flags & XFS_MOUNT_RDONLY)
- return XFS_ERROR(EROFS);
- error = xfs_qm_scall_quotaoff(mp,
- xfs_qm_import_flags(*(uint *)addr),
- B_FALSE);
- break;
-
- case Q_XGETQUOTA:
- error = xfs_qm_scall_getquota(mp, (xfs_dqid_t)id, XFS_DQ_USER,
- (fs_disk_quota_t *)addr);
- break;
- case Q_XGETGQUOTA:
- error = xfs_qm_scall_getquota(mp, (xfs_dqid_t)id, XFS_DQ_GROUP,
- (fs_disk_quota_t *)addr);
- break;
- case Q_XGETPQUOTA:
- error = xfs_qm_scall_getquota(mp, (xfs_dqid_t)id, XFS_DQ_PROJ,
- (fs_disk_quota_t *)addr);
- break;
-
- case Q_XSETQLIM:
- if (mp->m_flags & XFS_MOUNT_RDONLY)
- return XFS_ERROR(EROFS);
- error = xfs_qm_scall_setqlim(mp, (xfs_dqid_t)id, XFS_DQ_USER,
- (fs_disk_quota_t *)addr);
- break;
- case Q_XSETGQLIM:
- if (mp->m_flags & XFS_MOUNT_RDONLY)
- return XFS_ERROR(EROFS);
- error = xfs_qm_scall_setqlim(mp, (xfs_dqid_t)id, XFS_DQ_GROUP,
- (fs_disk_quota_t *)addr);
- break;
- case Q_XSETPQLIM:
- if (mp->m_flags & XFS_MOUNT_RDONLY)
- return XFS_ERROR(EROFS);
- error = xfs_qm_scall_setqlim(mp, (xfs_dqid_t)id, XFS_DQ_PROJ,
- (fs_disk_quota_t *)addr);
- break;
-
- default:
- error = XFS_ERROR(EINVAL);
- break;
- }
-
- return (error);
-}
-
-/*
* Turn off quota accounting and/or enforcement for all udquots and/or
* gdquots. Called only at unmount time.
*
@@ -193,11 +74,10 @@
* incore, and modifies the ondisk dquot directly. Therefore, for example,
* it is an error to call this twice, without purging the cache.
*/
-STATIC int
+int
xfs_qm_scall_quotaoff(
xfs_mount_t *mp,
- uint flags,
- boolean_t force)
+ uint flags)
{
uint dqtype;
int error;
@@ -205,8 +85,6 @@
xfs_qoff_logitem_t *qoffstart;
int nculprits;
- if (!force && !capable(CAP_SYS_ADMIN))
- return XFS_ERROR(EPERM);
/*
* No file system can have quotas enabled on disk but not in core.
* Note that quota utilities (like quotaoff) _expect_
@@ -375,7 +253,7 @@
return (error);
}
-STATIC int
+int
xfs_qm_scall_trunc_qfiles(
xfs_mount_t *mp,
uint flags)
@@ -383,8 +261,6 @@
int error = 0, error2 = 0;
xfs_inode_t *qip;
- if (!capable(CAP_SYS_ADMIN))
- return XFS_ERROR(EPERM);
if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0) {
qdprintk("qtrunc flags=%x m_qflags=%x\n", flags, mp->m_qflags);
return XFS_ERROR(EINVAL);
@@ -416,7 +292,7 @@
* effect immediately.
* (Switching on quota accounting must be done at mount time.)
*/
-STATIC int
+int
xfs_qm_scall_quotaon(
xfs_mount_t *mp,
uint flags)
@@ -426,9 +302,6 @@
uint accflags;
__int64_t sbflags;
- if (!capable(CAP_SYS_ADMIN))
- return XFS_ERROR(EPERM);
-
flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD);
/*
* Switching on quota accounting must be done at mount time.
@@ -517,7 +390,7 @@
/*
* Return quota status information, such as uquota-off, enforcements, etc.
*/
-STATIC int
+int
xfs_qm_scall_getqstat(
xfs_mount_t *mp,
fs_quota_stat_t *out)
@@ -582,7 +455,7 @@
/*
* Adjust quota limits, and start/stop timers accordingly.
*/
-STATIC int
+int
xfs_qm_scall_setqlim(
xfs_mount_t *mp,
xfs_dqid_t id,
@@ -595,9 +468,6 @@
int error;
xfs_qcnt_t hard, soft;
- if (!capable(CAP_SYS_ADMIN))
- return XFS_ERROR(EPERM);
-
if ((newlim->d_fieldmask &
(FS_DQ_LIMIT_MASK|FS_DQ_TIMER_MASK|FS_DQ_WARNS_MASK)) == 0)
return (0);
@@ -742,7 +612,7 @@
return error;
}
-STATIC int
+int
xfs_qm_scall_getquota(
xfs_mount_t *mp,
xfs_dqid_t id,
@@ -935,30 +805,6 @@
}
STATIC uint
-xfs_qm_import_qtype_flags(
- uint uflags)
-{
- uint oflags = 0;
-
- /*
- * Can't be more than one, or none.
- */
- if (((uflags & (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) ==
- (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) ||
- ((uflags & (XFS_GROUP_QUOTA | XFS_PROJ_QUOTA)) ==
- (XFS_GROUP_QUOTA | XFS_PROJ_QUOTA)) ||
- ((uflags & (XFS_USER_QUOTA | XFS_PROJ_QUOTA)) ==
- (XFS_USER_QUOTA | XFS_PROJ_QUOTA)) ||
- ((uflags & (XFS_GROUP_QUOTA|XFS_USER_QUOTA|XFS_PROJ_QUOTA)) == 0))
- return (0);
-
- oflags |= (uflags & XFS_USER_QUOTA) ? XFS_DQ_USER : 0;
- oflags |= (uflags & XFS_PROJ_QUOTA) ? XFS_DQ_PROJ : 0;
- oflags |= (uflags & XFS_GROUP_QUOTA) ? XFS_DQ_GROUP: 0;
- return oflags;
-}
-
-STATIC uint
xfs_qm_export_qtype_flags(
uint flags)
{
@@ -979,26 +825,6 @@
}
STATIC uint
-xfs_qm_import_flags(
- uint uflags)
-{
- uint flags = 0;
-
- if (uflags & XFS_QUOTA_UDQ_ACCT)
- flags |= XFS_UQUOTA_ACCT;
- if (uflags & XFS_QUOTA_PDQ_ACCT)
- flags |= XFS_PQUOTA_ACCT;
- if (uflags & XFS_QUOTA_GDQ_ACCT)
- flags |= XFS_GQUOTA_ACCT;
- if (uflags & XFS_QUOTA_UDQ_ENFD)
- flags |= XFS_UQUOTA_ENFD;
- if (uflags & (XFS_QUOTA_PDQ_ENFD|XFS_QUOTA_GDQ_ENFD))
- flags |= XFS_OQUOTA_ENFD;
- return (flags);
-}
-
-
-STATIC uint
xfs_qm_export_flags(
uint flags)
{
