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[XFS] remove dependency of the quota module on behaviors

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Mount options are now parsed by the main XFS module and rejected if quota
support is not available, and there are some new quota operation for the
quotactl syscall and calls to quote in the mount, unmount and sync
callchains.

SGI-PV: 969608
SGI-Modid: xfs-linux-melb:xfs-kern:29503a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
This commit is contained in:
Christoph Hellwig
2007-08-30 17:19:57 +10:00
committed by Tim Shimmin
parent 293688ec42
commit b09cc77109
12 changed files with 225 additions and 304 deletions
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38
fs/xfs/xfs_qmops.c
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@ -28,6 +28,8 @@
#include "xfs_mount.h"
#include "xfs_quota.h"
#include "xfs_error.h"
#include "xfs_clnt.h"
STATIC struct xfs_dquot *
xfs_dqvopchown_default(
@ -110,7 +112,7 @@ xfs_noquota_init(
return error;
}
xfs_qmops_t xfs_qmcore_stub = {
static struct xfs_qmops xfs_qmcore_stub = {
.xfs_qminit = (xfs_qminit_t) xfs_noquota_init,
.xfs_qmdone = (xfs_qmdone_t) fs_noerr,
.xfs_qmmount = (xfs_qmmount_t) fs_noerr,
@ -124,4 +126,38 @@ xfs_qmops_t xfs_qmcore_stub = {
.xfs_dqvoprename = (xfs_dqvoprename_t) fs_noerr,
.xfs_dqvopchown = xfs_dqvopchown_default,
.xfs_dqvopchownresv = (xfs_dqvopchownresv_t) fs_noerr,
.xfs_dqstatvfs = (xfs_dqstatvfs_t) fs_noval,
.xfs_dqsync = (xfs_dqsync_t) fs_noerr,
.xfs_quotactl = (xfs_quotactl_t) fs_nosys,
};
int
xfs_qmops_get(struct xfs_mount *mp, struct xfs_mount_args *args)
{
if (args->flags & (XFSMNT_UQUOTA | XFSMNT_PQUOTA | XFSMNT_GQUOTA)) {
struct xfs_qmops *ops;
ops = symbol_get(xfs_qmcore_xfs);
if (!ops) {
request_module("xfs_quota");
ops = symbol_get(xfs_qmcore_xfs);
}
if (!ops) {
cmn_err(CE_WARN, "XFS: no quota support available.");
return EINVAL;
}
mp->m_qm_ops = ops;
} else {
mp->m_qm_ops = &xfs_qmcore_stub;
}
return 0;
}
void
xfs_qmops_put(struct xfs_mount *mp)
{
if (mp->m_qm_ops != &xfs_qmcore_stub)
symbol_put(xfs_qmcore_xfs);
}