diff options
| author | Andrew Perepechko <andrew.perepechko@seagate.com> | 2016-11-02 21:24:56 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-11-07 11:36:46 +0100 |
| commit | a18a46ddb570779fa60362962ecdc07aa071d6b0 (patch) | |
| tree | ea510d53658f9b277920803f810fd2ac2a33f74f /drivers | |
| parent | a763e916d81e275176302684628738fd917b55da (diff) | |
| download | linux-a18a46ddb570779fa60362962ecdc07aa071d6b0.tar.bz2 | |
staging/lustre/llite: drop_caches hangs in cl_inode_fini()
This patch releases cl_pages on error in ll_write_begin()
to avoid memory and object reference leaks. Also, it
reuses per-cpu lu_env in ll_invalidatepage() in the same
way as done in ll_releasepage().
Signed-off-by: Andrew Perepechko <andrew.perepechko@seagate.com>
Seagate-bug-id: MRP-3504
Reviewed-on: http://review.whamcloud.com/22745
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8509
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: Bobi Jam <bobijam@hotmail.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/lustre/lustre/llite/rw26.c | 36 |
1 files changed, 19 insertions, 17 deletions
diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c index 1a08a9d526e8..ca45b44dee33 100644 --- a/drivers/staging/lustre/lustre/llite/rw26.c +++ b/drivers/staging/lustre/lustre/llite/rw26.c @@ -71,8 +71,6 @@ static void ll_invalidatepage(struct page *vmpage, unsigned int offset, struct cl_page *page; struct cl_object *obj; - int refcheck; - LASSERT(PageLocked(vmpage)); LASSERT(!PageWriteback(vmpage)); @@ -82,21 +80,21 @@ static void ll_invalidatepage(struct page *vmpage, unsigned int offset, * happening with locked page too */ if (offset == 0 && length == PAGE_SIZE) { - env = cl_env_get(&refcheck); - if (!IS_ERR(env)) { - inode = vmpage->mapping->host; - obj = ll_i2info(inode)->lli_clob; - if (obj) { - page = cl_vmpage_page(vmpage, obj); - if (page) { - cl_page_delete(env, page); - cl_page_put(env, page); - } - } else { - LASSERT(vmpage->private == 0); + /* See the comment in ll_releasepage() */ + env = cl_env_percpu_get(); + LASSERT(!IS_ERR(env)); + inode = vmpage->mapping->host; + obj = ll_i2info(inode)->lli_clob; + if (obj) { + page = cl_vmpage_page(vmpage, obj); + if (page) { + cl_page_delete(env, page); + cl_page_put(env, page); } - cl_env_put(env, &refcheck); + } else { + LASSERT(vmpage->private == 0); } + cl_env_percpu_put(env); } } @@ -466,9 +464,9 @@ static int ll_write_begin(struct file *file, struct address_space *mapping, struct page **pagep, void **fsdata) { struct ll_cl_context *lcc; - const struct lu_env *env; + const struct lu_env *env = NULL; struct cl_io *io; - struct cl_page *page; + struct cl_page *page = NULL; struct cl_object *clob = ll_i2info(mapping->host)->lli_clob; pgoff_t index = pos >> PAGE_SHIFT; struct page *vmpage = NULL; @@ -556,6 +554,10 @@ out: unlock_page(vmpage); put_page(vmpage); } + if (!IS_ERR_OR_NULL(page)) { + lu_ref_del(&page->cp_reference, "cl_io", io); + cl_page_put(env, page); + } } else { *pagep = vmpage; *fsdata = lcc; |