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authorTejun Heo <tj@kernel.org>2010-07-21 00:09:02 +0400
committerTejun Heo <tj@kernel.org>2010-07-23 15:14:25 +0400
commit6ecd7c2dd9f5dd4f6e8f65c8027159f9c73b0e4c (patch)
treeba12b0b9ba00e21ff73eee82714be448c5a7c6e9 /fs/gfs2/recovery.h
parent991ea75cb1df7188d209274b3d51c105b4f18ffe (diff)
downloadlinux-6ecd7c2dd9f5dd4f6e8f65c8027159f9c73b0e4c.tar.xz
gfs2: use workqueue instead of slow-work
Workqueue can now handle high concurrency. Convert gfs to use workqueue instead of slow-work. * Steven pointed out that recovery path might be run from allocation path and thus requires forward progress guarantee without memory allocation. Create and use gfs_recovery_wq with rescuer. Please note that forward progress wasn't guaranteed with slow-work. * Updated to use non-reentrant workqueue. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/recovery.h')
-rw-r--r--fs/gfs2/recovery.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/gfs2/recovery.h b/fs/gfs2/recovery.h
index 1616ac22569a..2226136c7647 100644
--- a/fs/gfs2/recovery.h
+++ b/fs/gfs2/recovery.h
@@ -12,6 +12,8 @@
#include "incore.h"
+extern struct workqueue_struct *gfs_recovery_wq;
+
static inline void gfs2_replay_incr_blk(struct gfs2_sbd *sdp, unsigned int *blk)
{
if (++*blk == sdp->sd_jdesc->jd_blocks)
@@ -27,8 +29,8 @@ extern void gfs2_revoke_clean(struct gfs2_sbd *sdp);
extern int gfs2_find_jhead(struct gfs2_jdesc *jd,
struct gfs2_log_header_host *head);
-extern int gfs2_recover_journal(struct gfs2_jdesc *gfs2_jd);
-extern struct slow_work_ops gfs2_recover_ops;
+extern int gfs2_recover_journal(struct gfs2_jdesc *gfs2_jd, bool wait);
+extern void gfs2_recover_func(struct work_struct *work);
#endif /* __RECOVERY_DOT_H__ */