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authorChristoph Hellwig <hch@infradead.org>2012-02-20 06:31:20 +0400
committerBen Myers <bpm@sgi.com>2012-02-23 08:17:00 +0400
commit09a423a3d6c70905f1090f01aadb8e6abff527ce (patch)
tree7bbe94301c348add4bb9e11b253b3f9617ef3573 /fs/xfs/xfs_log_priv.h
parent70b5437653d9c6c8de287affd38836cce98ebde5 (diff)
downloadlinux-09a423a3d6c70905f1090f01aadb8e6abff527ce.tar.xz
xfs: split tail_lsn assignments from log space wakeups
Currently xfs_log_move_tail has a tail_lsn argument that is horribly overloaded: it may contain either an actual lsn to assign to the log tail, 0 as a special case to use the last sync LSN, or 1 to indicate that no tail LSN assignment should be performed, and we should opportunisticly wake up at one task waiting for log space even if we did not move the LSN. Remove the tail lsn assigned from xfs_log_move_tail and make the two callers use xlog_assign_tail_lsn instead of the current variant of partially using the code in xfs_log_move_tail and partially opencoding it. Note that means we grow an addition lock roundtrip on the AIL lock for each bulk update or delete, which is still far less than what we had before introducing the bulk operations. If this proves to be a problem we can still add a variant of xlog_assign_tail_lsn that expects the lock to be held already. Also rename the remainder of xfs_log_move_tail to xfs_log_space_wake as that name describes its functionality much better. Reviewed-by: Mark Tinguely <tinguely@sgi.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_log_priv.h')
-rw-r--r--fs/xfs/xfs_log_priv.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h
index 2d3b6a498d63..785905e3cf03 100644
--- a/fs/xfs/xfs_log_priv.h
+++ b/fs/xfs/xfs_log_priv.h
@@ -545,7 +545,6 @@ typedef struct log {
#define XLOG_FORCED_SHUTDOWN(log) ((log)->l_flags & XLOG_IO_ERROR)
/* common routines */
-extern xfs_lsn_t xlog_assign_tail_lsn(struct xfs_mount *mp);
extern int xlog_recover(xlog_t *log);
extern int xlog_recover_finish(xlog_t *log);
extern void xlog_pack_data(xlog_t *log, xlog_in_core_t *iclog, int);