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[GFS2] Quotas non-functional - fix another bug 

This patch fixes a bug where gfs2 was writing update quota usage
information to the wrong location in the quota file.

Signed-off-by: Abhijith Das <adas@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Abhijith Das 2007-05-31 17:52:02 -05:00 committed by Steven Whitehouse
parent 0b7cac0fb0
commit 1990e91765
3 changed files with 18 additions and 4 deletions
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10
fs/gfs2/ondisk.c
View File

@ -121,6 +121,16 @@ void gfs2_quota_in(struct gfs2_quota_host *qu, const void *buf)
qu->qu_value = be64_to_cpu(str->qu_value);
}
void gfs2_quota_out(const struct gfs2_quota_host *qu, void *buf)
{
struct gfs2_quota *str = buf;
str->qu_limit = cpu_to_be64(qu->qu_limit);
str->qu_warn = cpu_to_be64(qu->qu_warn);
str->qu_value = cpu_to_be64(qu->qu_value);
memset(&str->qu_reserved, 0, sizeof(str->qu_reserved));
}
void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
{
const struct gfs2_dinode_host *di = &ip->i_di;

11
fs/gfs2/quota.c
View File

@ -573,12 +573,13 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
struct inode *inode = &ip->i_inode;
struct address_space *mapping = inode->i_mapping;
unsigned long index = loc >> PAGE_CACHE_SHIFT;
unsigned offset = loc & (PAGE_CACHE_SHIFT - 1);
unsigned offset = loc & (PAGE_CACHE_SIZE - 1);
unsigned blocksize, iblock, pos;
struct buffer_head *bh;
struct page *page;
void *kaddr;
__be64 *ptr;
char *ptr;
struct gfs2_quota_host qp;
s64 value;
int err = -EIO;
@ -620,8 +621,10 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
kaddr = kmap_atomic(page, KM_USER0);
ptr = kaddr + offset;
value = (s64)be64_to_cpu(*ptr) + change;
*ptr = cpu_to_be64(value);
gfs2_quota_in(&qp, ptr);
qp.qu_value += change;
value = qp.qu_value;
gfs2_quota_out(&qp, ptr);
flush_dcache_page(page);
kunmap_atomic(kaddr, KM_USER0);
err = 0;

1
include/linux/gfs2_ondisk.h
View File

@ -519,6 +519,7 @@ extern void gfs2_rindex_out(const struct gfs2_rindex_host *ri, void *buf);
extern void gfs2_rgrp_in(struct gfs2_rgrp_host *rg, const void *buf);
extern void gfs2_rgrp_out(const struct gfs2_rgrp_host *rg, void *buf);
extern void gfs2_quota_in(struct gfs2_quota_host *qu, const void *buf);
extern void gfs2_quota_out(const struct gfs2_quota_host *qu, void *buf);
struct gfs2_inode;
extern void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf);
extern void gfs2_ea_header_in(struct gfs2_ea_header *ea, const void *buf);