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authorChristoph Hellwig <hch@infradead.org>2010-05-07 01:04:58 +0400
committerJan Kara <jack@suse.cz>2010-05-21 21:30:43 +0400
commitb9b2dd36c1bc64430f8e13990ab135cbecc10076 (patch)
tree051bb6a238c9ff98fe135de3e8591c65cf242d46 /fs/quota/quota.c
parent0636c73ee7b129f77f577aaaefc8dde057be6d18 (diff)
downloadlinux-b9b2dd36c1bc64430f8e13990ab135cbecc10076.tar.xz
quota: unify ->get_dqblk
Pass the larger struct fs_disk_quota to the ->get_dqblk operation so that the Q_GETQUOTA and Q_XGETQUOTA operations can be implemented with a single filesystem operation and we can retire the ->get_xquota operation. The additional information (RT-subvolume accounting and warn counts) are left zero for the VFS quota implementation. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/quota/quota.c')
-rw-r--r--fs/quota/quota.c23
1 files changed, 18 insertions, 5 deletions
diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index 95388f9b7356..8680e257c2bd 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -136,19 +136,32 @@ static int quota_setinfo(struct super_block *sb, int type, void __user *addr)
return sb->s_qcop->set_info(sb, type, &info);
}
+static void copy_to_if_dqblk(struct if_dqblk *dst, struct fs_disk_quota *src)
+{
+ dst->dqb_bhardlimit = src->d_blk_hardlimit;
+ dst->dqb_bsoftlimit = src->d_blk_softlimit;
+ dst->dqb_curspace = src->d_bcount;
+ dst->dqb_ihardlimit = src->d_ino_hardlimit;
+ dst->dqb_isoftlimit = src->d_ino_softlimit;
+ dst->dqb_curinodes = src->d_icount;
+ dst->dqb_btime = src->d_btimer;
+ dst->dqb_itime = src->d_itimer;
+ dst->dqb_valid = QIF_ALL;
+}
+
static int quota_getquota(struct super_block *sb, int type, qid_t id,
void __user *addr)
{
+ struct fs_disk_quota fdq;
struct if_dqblk idq;
int ret;
- if (!sb_has_quota_active(sb, type))
- return -ESRCH;
if (!sb->s_qcop->get_dqblk)
return -ENOSYS;
- ret = sb->s_qcop->get_dqblk(sb, type, id, &idq);
+ ret = sb->s_qcop->get_dqblk(sb, type, id, &fdq);
if (ret)
return ret;
+ copy_to_if_dqblk(&idq, &fdq);
if (copy_to_user(addr, &idq, sizeof(idq)))
return -EFAULT;
return 0;
@@ -210,9 +223,9 @@ static int quota_getxquota(struct super_block *sb, int type, qid_t id,
struct fs_disk_quota fdq;
int ret;
- if (!sb->s_qcop->get_xquota)
+ if (!sb->s_qcop->get_dqblk)
return -ENOSYS;
- ret = sb->s_qcop->get_xquota(sb, type, id, &fdq);
+ ret = sb->s_qcop->get_dqblk(sb, type, id, &fdq);
if (!ret && copy_to_user(addr, &fdq, sizeof(fdq)))
return -EFAULT;
return ret;