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authorBob Peterson <rpeterso@redhat.com>2013-05-28 18:04:44 +0400
committerSteven Whitehouse <swhiteho@redhat.com>2013-06-03 19:38:58 +0400
commit2b3dcf35810ff02ad0e785527a25c1b13bf82b19 (patch)
tree0ab2a2f709290e2eb4d74d385a7d832929e3768c /fs/gfs2/rgrp.c
parent4a586812055dbd2588b0836ab758f6b9670c3949 (diff)
downloadlinux-2b3dcf35810ff02ad0e785527a25c1b13bf82b19.tar.xz
GFS2: Increase i_writecount during gfs2_setattr_size
This patch calls get_write_access in a few functions. This merely increases inode->i_writecount for the duration of the function. That will ensure that any file closes won't delete the inode's multi-block reservation while the function is running. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/rgrp.c')
-rw-r--r--fs/gfs2/rgrp.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 5232525934ae..9809156e3d04 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -638,8 +638,10 @@ void gfs2_rs_deltree(struct gfs2_blkreserv *rs)
*/
void gfs2_rs_delete(struct gfs2_inode *ip)
{
+ struct inode *inode = &ip->i_inode;
+
down_write(&ip->i_rw_mutex);
- if (ip->i_res) {
+ if (ip->i_res && atomic_read(&inode->i_writecount) <= 1) {
gfs2_rs_deltree(ip->i_res);
BUG_ON(ip->i_res->rs_free);
kmem_cache_free(gfs2_rsrv_cachep, ip->i_res);