This is a note to let you know that I've just added the patch titled
pnfs: add pnfs_put_lseg_async
to the 3.16-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pnfs-add-pnfs_put_lseg_async.patch
and it can be found in the queue-3.16 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From trond.mykleb...@primarydata.com Thu Oct 2 16:49:03 2014
From: Trond Myklebust <trond.mykleb...@primarydata.com>
Date: Mon, 15 Sep 2014 14:14:37 -0400
Subject: pnfs: add pnfs_put_lseg_async
To: stable@vger.kernel.org
Cc: Weston Andros Adamson <d...@primarydata.com>, linux-...@vger.kernel.org
Message-ID: <1410804885-17228-7-git-send-email-trond.mykleb...@primarydata.com>
From: Weston Andros Adamson <d...@primarydata.com>
commit e6cf82d1830f5e16a10d566f58db70f297ba5da8 upstream.
This is useful when lsegs need to be released while holding locks.
Signed-off-by: Weston Andros Adamson <d...@primarydata.com>
Signed-off-by: Trond Myklebust <trond.mykleb...@primarydata.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
fs/nfs/pnfs.c | 17 +++++++++++++++++
fs/nfs/pnfs.h | 7 +++++++
2 files changed, 24 insertions(+)
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -361,6 +361,23 @@ pnfs_put_lseg(struct pnfs_layout_segment
}
EXPORT_SYMBOL_GPL(pnfs_put_lseg);
+static void pnfs_put_lseg_async_work(struct work_struct *work)
+{
+ struct pnfs_layout_segment *lseg;
+
+ lseg = container_of(work, struct pnfs_layout_segment, pls_work);
+
+ pnfs_put_lseg(lseg);
+}
+
+void
+pnfs_put_lseg_async(struct pnfs_layout_segment *lseg)
+{
+ INIT_WORK(&lseg->pls_work, pnfs_put_lseg_async_work);
+ schedule_work(&lseg->pls_work);
+}
+EXPORT_SYMBOL_GPL(pnfs_put_lseg_async);
+
static u64
end_offset(u64 start, u64 len)
{
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -32,6 +32,7 @@
#include <linux/nfs_fs.h>
#include <linux/nfs_page.h>
+#include <linux/workqueue.h>
enum {
NFS_LSEG_VALID = 0, /* cleared when lseg is recalled/returned */
@@ -46,6 +47,7 @@ struct pnfs_layout_segment {
atomic_t pls_refcount;
unsigned long pls_flags;
struct pnfs_layout_hdr *pls_layout;
+ struct work_struct pls_work;
};
enum pnfs_try_status {
@@ -179,6 +181,7 @@ extern int nfs4_proc_layoutreturn(struct
/* pnfs.c */
void pnfs_get_layout_hdr(struct pnfs_layout_hdr *lo);
void pnfs_put_lseg(struct pnfs_layout_segment *lseg);
+void pnfs_put_lseg_async(struct pnfs_layout_segment *lseg);
void set_pnfs_layoutdriver(struct nfs_server *, const struct nfs_fh *, u32);
void unset_pnfs_layoutdriver(struct nfs_server *);
@@ -410,6 +413,10 @@ static inline void pnfs_put_lseg(struct
{
}
+static inline void pnfs_put_lseg_async(struct pnfs_layout_segment *lseg)
+{
+}
+
static inline int pnfs_return_layout(struct inode *ino)
{
return 0;
Patches currently in stable-queue which might be from
trond.mykleb...@primarydata.com are
queue-3.16/nfs-move-nfs_pgio_data-and-remove-nfs_rw_header.patch
queue-3.16/nfs-use-blocking-page_group_lock-in-add_request.patch
queue-3.16/nfs-remove-pgio_header-refcount-related-cleanup.patch
queue-3.16/pnfs-add-pnfs_put_lseg_async.patch
queue-3.16/nfs-can_coalesce_requests-must-enforce-contiguity.patch
queue-3.16/nfs-disallow-duplicate-pages-in-pgio-page-vectors.patch
queue-3.16/nfs-fix-error-handling-in-lock_and_join_requests.patch
queue-3.16/nfs-change-nfs_page_group_lock-argument.patch
queue-3.16/nfsv4-nfs4_state_manager-vs.-nfs_server_remove_lists.patch
queue-3.16/nfsv4-fix-another-bug-in-the-close-open_downgrade-code.patch
queue-3.16/nfs-check-wait_on_bit_lock-err-in-page_group_lock.patch
queue-3.16/nfs-don-t-sleep-with-inode-lock-in-lock_and_join_requests.patch
queue-3.16/nfs-rename-members-of-nfs_pgio_data.patch
queue-3.16/nfs-fix-nonblocking-calls-to-nfs_page_group_lock.patch
queue-3.16/nfs-merge-nfs_pgio_data-into-_header.patch
queue-3.16/nfs-clear_request_commit-while-holding-i_lock.patch
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