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authorSteven Whitehouse <swhiteho@redhat.com>2013-09-27 12:49:33 +0100
committerSteven Whitehouse <swhiteho@redhat.com>2013-09-27 12:49:33 +0100
commitaf5c269799feaef110e59ce55b497cdd08712b0c (patch)
treec5aad271b31ba67c5eef857b927ed2dc45186176 /fs/gfs2/rgrp.c
parent5ca1db41ecdeb0358b968265fadb755213558a85 (diff)
downloadop-kernel-dev-af5c269799feaef110e59ce55b497cdd08712b0c.zip
op-kernel-dev-af5c269799feaef110e59ce55b497cdd08712b0c.tar.gz
GFS2: Clean up reservation removal
The reservation for an inode should be cleared when it is truncated so that we can start again at a different offset for future allocations. We could try and do better than that, by resetting the search based on where the truncation started from, but this is only a first step. In addition, there are three callers of gfs2_rs_delete() but only one of those should really be testing the value of i_writecount. While we get away with that in the other cases currently, I think it would be better if we made that test specific to the one case which requires it. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/rgrp.c')
-rw-r--r--fs/gfs2/rgrp.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 285dd36..d4d10fa 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -661,14 +661,13 @@ void gfs2_rs_deltree(struct gfs2_blkreserv *rs)
/**
* gfs2_rs_delete - delete a multi-block reservation
* @ip: The inode for this reservation
+ * @wcount: The inode's write count, or NULL
*
*/
-void gfs2_rs_delete(struct gfs2_inode *ip)
+void gfs2_rs_delete(struct gfs2_inode *ip, atomic_t *wcount)
{
- struct inode *inode = &ip->i_inode;
-
down_write(&ip->i_rw_mutex);
- if (ip->i_res && atomic_read(&inode->i_writecount) <= 1) {
+ if (ip->i_res && ((wcount == NULL) || (atomic_read(wcount) <= 1))) {
gfs2_rs_deltree(ip->i_res);
BUG_ON(ip->i_res->rs_free);
kmem_cache_free(gfs2_rsrv_cachep, ip->i_res);
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