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authorBob Peterson <rpeterso@redhat.com>2015-12-07 15:13:28 -0600
committerBob Peterson <rpeterso@redhat.com>2015-12-18 10:52:21 -0600
commitee530beafeca9826b2086eab053312b182c09669 (patch)
treece121efbff68c56d5fca6fbb7f3719461e7d4799 /fs/gfs2
parent86d067a797d4e8546a7c92b985f31e8cd3ec39ad (diff)
downloadop-kernel-dev-ee530beafeca9826b2086eab053312b182c09669.zip
op-kernel-dev-ee530beafeca9826b2086eab053312b182c09669.tar.gz
GFS2: Truncate address space mapping when deleting an inode
In function gfs2_delete_inode() we write and flush the mapping for a glock, among other things. We truncate the mapping for the inode, but we never truncate the mapping for the glock. This patch makes it also truncate the metamapping. This avoid cases where the glock is reused by another process who is trying to recreate an inode in its place using the same block. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Acked-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2')
-rw-r--r--fs/gfs2/super.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 4f0708f..8f960a5 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -1519,6 +1519,7 @@ static void gfs2_evict_inode(struct inode *inode)
struct gfs2_sbd *sdp = sb->s_fs_info;
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_holder gh;
+ struct address_space *metamapping;
int error;
if (test_bit(GIF_FREE_VFS_INODE, &ip->i_flags)) {
@@ -1583,8 +1584,8 @@ static void gfs2_evict_inode(struct inode *inode)
out_truncate:
gfs2_log_flush(sdp, ip->i_gl, NORMAL_FLUSH);
+ metamapping = gfs2_glock2aspace(ip->i_gl);
if (test_bit(GLF_DIRTY, &ip->i_gl->gl_flags)) {
- struct address_space *metamapping = gfs2_glock2aspace(ip->i_gl);
filemap_fdatawrite(metamapping);
filemap_fdatawait(metamapping);
}
@@ -1597,6 +1598,7 @@ out_truncate:
goto out_unlock;
/* Needs to be done before glock release & also in a transaction */
truncate_inode_pages(&inode->i_data, 0);
+ truncate_inode_pages(metamapping, 0);
gfs2_trans_end(sdp);
out_unlock:
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