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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-11 13:36:12 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-11 13:36:12 -0400
commit0a33f80a8373eca7f4bea3961d1346c3815fa5ed (patch)
tree16b0c0364340416f1e27bebdd4042ffe0e6fef8f /fs/gfs2/glock.c
parentc29f5ec022451546be1e0b24c330a0368e63e4a7 (diff)
parent003dec8913d6bebb4ecc989ec04a235cf38f5ea9 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (25 commits) GFS2: Merge gfs2_get_sb into gfs2_get_sb_meta GFS2: Fix cache coherency between truncate and O_DIRECT read GFS2: Fix locking issue mounting gfs2meta fs GFS2: Remove unused variable GFS2: smbd proccess hangs with flock() call. GFS2: Remove args subdir from gfs2 sysfs files GFS2: Remove lockstruct subdir from gfs2 sysfs files GFS2: Move gfs2_unlink_ok into ops_inode.c GFS2: Move gfs2_readlinki into ops_inode.c GFS2: Move gfs2_rmdiri into ops_inode.c GFS2: Merge mount.c and ops_super.c into super.c GFS2: Clean up some file names GFS2: Be more aggressive in reclaiming unlinked inodes GFS2: Add a rgrp bitmap full flag GFS2: Improve resource group error handling GFS2: Don't warn when delete inode fails on ro filesystem GFS2: Update docs GFS2: Umount recovery race fix GFS2: Remove a couple of unused sysfs entries GFS2: Add commit= mount option ...
Diffstat (limited to 'fs/gfs2/glock.c')
-rw-r--r--fs/gfs2/glock.c21
1 files changed, 18 insertions, 3 deletions
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index ff4981090489..2bf62bcc5181 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -796,22 +796,37 @@ void gfs2_holder_uninit(struct gfs2_holder *gh)
796 gh->gh_ip = 0; 796 gh->gh_ip = 0;
797} 797}
798 798
799static int just_schedule(void *word) 799/**
800 * gfs2_glock_holder_wait
801 * @word: unused
802 *
803 * This function and gfs2_glock_demote_wait both show up in the WCHAN
804 * field. Thus I've separated these otherwise identical functions in
805 * order to be more informative to the user.
806 */
807
808static int gfs2_glock_holder_wait(void *word)
800{ 809{
801 schedule(); 810 schedule();
802 return 0; 811 return 0;
803} 812}
804 813
814static int gfs2_glock_demote_wait(void *word)
815{
816 schedule();
817 return 0;
818}
819
805static void wait_on_holder(struct gfs2_holder *gh) 820static void wait_on_holder(struct gfs2_holder *gh)
806{ 821{
807 might_sleep(); 822 might_sleep();
808 wait_on_bit(&gh->gh_iflags, HIF_WAIT, just_schedule, TASK_UNINTERRUPTIBLE); 823 wait_on_bit(&gh->gh_iflags, HIF_WAIT, gfs2_glock_holder_wait, TASK_UNINTERRUPTIBLE);
809} 824}
810 825
811static void wait_on_demote(struct gfs2_glock *gl) 826static void wait_on_demote(struct gfs2_glock *gl)
812{ 827{
813 might_sleep(); 828 might_sleep();
814 wait_on_bit(&gl->gl_flags, GLF_DEMOTE, just_schedule, TASK_UNINTERRUPTIBLE); 829 wait_on_bit(&gl->gl_flags, GLF_DEMOTE, gfs2_glock_demote_wait, TASK_UNINTERRUPTIBLE);
815} 830}
816 831
817/** 832/**