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authorBob Peterson <rpeterso@redhat.com>2015-12-04 10:19:14 -0600
committerBob Peterson <rpeterso@redhat.com>2015-12-18 10:57:21 -0600
commit783013c0f5c7263a31703b15aeebbac279b4d4fe (patch)
treef30364b378ba779561cd3e74e2f6d7f912498c35 /fs/gfs2
parentee530beafeca9826b2086eab053312b182c09669 (diff)
downloadlinux-783013c0f5c7263a31703b15aeebbac279b4d4fe.tar.bz2
GFS2: Release iopen glock in gfs2_create_inode error cases
Some error cases in gfs2_create_inode were not unlocking the iopen glock, getting the reference count off. This adds the proper unlock. The error logic in function gfs2_create_inode was also convoluted, so this patch simplifies it. It also takes care of a bug in which gfs2_qa_delete() was not called in an error case. Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Diffstat (limited to 'fs/gfs2')
-rw-r--r--fs/gfs2/inode.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index bf2af049359b..87fa5992e12a 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -594,7 +594,7 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
struct gfs2_inode *dip = GFS2_I(dir), *ip;
struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
struct gfs2_glock *io_gl;
- int error, free_vfs_inode = 0;
+ int error, free_vfs_inode = 1;
u32 aflags = 0;
unsigned blocks = 1;
struct gfs2_diradd da = { .bh = NULL, .save_loc = 1, };
@@ -651,7 +651,7 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
error = posix_acl_create(dir, &mode, &default_acl, &acl);
if (error)
- goto fail_free_vfs_inode;
+ goto fail_gunlock;
ip = GFS2_I(inode);
error = gfs2_rsqa_alloc(ip);
@@ -739,6 +739,9 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
gfs2_set_iop(inode);
insert_inode_hash(inode);
+ free_vfs_inode = 0; /* After this point, the inode is no longer
+ considered free. Any failures need to undo
+ the gfs2 structures. */
if (default_acl) {
error = gfs2_set_acl(inode, default_acl, ACL_TYPE_DEFAULT);
posix_acl_release(default_acl);
@@ -772,11 +775,8 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
return error;
fail_gunlock3:
- gfs2_glock_dq_uninit(ghs + 1);
- if (ip->i_gl)
- gfs2_glock_put(ip->i_gl);
- goto fail_gunlock;
-
+ gfs2_glock_dq_uninit(&ip->i_iopen_gh);
+ gfs2_glock_put(io_gl);
fail_gunlock2:
gfs2_glock_dq_uninit(ghs + 1);
fail_free_inode:
@@ -788,8 +788,6 @@ fail_free_acls:
posix_acl_release(default_acl);
if (acl)
posix_acl_release(acl);
-fail_free_vfs_inode:
- free_vfs_inode = 1;
fail_gunlock:
gfs2_dir_no_add(&da);
gfs2_glock_dq_uninit(ghs);