Since commit a0e3cc65fa29 ("gfs2: Turn gl_delete into a delayed work"), we're
cancelling any pending delete work of an iopen glock before attaching a new
inode to that glock in gfs2_create_inode. This means that delete_work_func can
no longer be queued or running when attaching the iopen glock to the new inode,
and we can revert commit a4923865ea07 ("GFS2: Prevent delete work from
occurring on glocks used for create"), which tried to achieve the same but in a
racy way.
Signed-off-by: Andreas Gruenbacher <[email protected]>
---
fs/gfs2/glock.c | 8 --------
fs/gfs2/incore.h | 1 -
fs/gfs2/inode.c | 6 +-----
3 files changed, 1 insertion(+), 14 deletions(-)
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 35a6fd103761..d87a5bc3607b 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -857,12 +857,6 @@ static void delete_work_func(struct work_struct *work)
clear_bit(GLF_PENDING_DELETE, &gl->gl_flags);
spin_unlock(&gl->gl_lockref.lock);
- /* If someone's using this glock to create a new dinode, the block must
- have been freed by another node, then re-used, in which case our
- iopen callback is too late after the fact. Ignore it. */
- if (test_bit(GLF_INODE_CREATING, &gl->gl_flags))
- goto out;
-
if (test_bit(GLF_DEMOTE, &gl->gl_flags)) {
/*
* If we can evict the inode, give the remote node trying to
@@ -2112,8 +2106,6 @@ static const char *gflags2str(char *buf, const struct
gfs2_glock *gl)
*p++ = 'o';
if (test_bit(GLF_BLOCKING, gflags))
*p++ = 'b';
- if (test_bit(GLF_INODE_CREATING, gflags))
- *p++ = 'c';
if (test_bit(GLF_PENDING_DELETE, gflags))
*p++ = 'P';
if (test_bit(GLF_FREEING, gflags))
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index f8858d995b24..8e1ab8ed4abc 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -348,7 +348,6 @@ enum {
GLF_LRU = 13,
GLF_OBJECT = 14, /* Used only for tracing */
GLF_BLOCKING = 15,
- GLF_INODE_CREATING = 16, /* Inode creation occurring */
GLF_PENDING_DELETE = 17,
GLF_FREEING = 18, /* Wait for glock to be freed */
};
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 65d15c5c8246..3d414390ace3 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -609,7 +609,7 @@ static int gfs2_create_inode(struct inode *dir, struct
dentry *dentry,
struct inode *inode = NULL;
struct gfs2_inode *dip = GFS2_I(dir), *ip;
struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
- struct gfs2_glock *io_gl = NULL;
+ struct gfs2_glock *io_gl;
int error, free_vfs_inode = 1;
u32 aflags = 0;
unsigned blocks = 1;
@@ -748,8 +748,6 @@ static int gfs2_create_inode(struct inode *dir, struct
dentry *dentry,
if (error)
goto fail_free_inode;
- BUG_ON(test_and_set_bit(GLF_INODE_CREATING, &io_gl->gl_flags));
-
error = gfs2_glock_nq_init(io_gl, LM_ST_SHARED, GL_EXACT,
&ip->i_iopen_gh);
if (error)
goto fail_gunlock2;
@@ -797,7 +795,6 @@ static int gfs2_create_inode(struct inode *dir, struct
dentry *dentry,
gfs2_glock_dq_uninit(ghs);
gfs2_qa_put(ip);
gfs2_glock_dq_uninit(ghs + 1);
- clear_bit(GLF_INODE_CREATING, &io_gl->gl_flags);
gfs2_glock_put(io_gl);
gfs2_qa_put(dip);
return error;
@@ -806,7 +803,6 @@ static int gfs2_create_inode(struct inode *dir, struct
dentry *dentry,
glock_clear_object(io_gl, ip);
gfs2_glock_dq_uninit(&ip->i_iopen_gh);
fail_gunlock2:
- clear_bit(GLF_INODE_CREATING, &io_gl->gl_flags);
gfs2_glock_put(io_gl);
fail_free_inode:
if (ip->i_gl) {
--
2.26.2
