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gfs2: create function gfs2_glock_update_hold_time 

This patch moves the code that updates glock minimum hold
time to a separate function. This will be called by a future
patch.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
This commit is contained in:
Andreas Gruenbacher 2019-08-30 12:31:01 -05:00
parent bc74aaefdd
commit 01123cf17c
1 changed files with 13 additions and 6 deletions
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19
fs/gfs2/glock.c
View File

@ -931,6 +931,17 @@ void gfs2_holder_uninit(struct gfs2_holder *gh)
gh->gh_ip = 0;
}
static void gfs2_glock_update_hold_time(struct gfs2_glock *gl,
unsigned long start_time)
{
/* Have we waited longer that a second? */
if (time_after(jiffies, start_time + HZ)) {
/* Lengthen the minimum hold time. */
gl->gl_hold_time = min(gl->gl_hold_time + GL_GLOCK_HOLD_INCR,
GL_GLOCK_MAX_HOLD);
}
}
/**
* gfs2_glock_wait - wait on a glock acquisition
* @gh: the glock holder
@ -940,15 +951,11 @@ void gfs2_holder_uninit(struct gfs2_holder *gh)
int gfs2_glock_wait(struct gfs2_holder *gh)
{
unsigned long time1 = jiffies;
unsigned long start_time = jiffies;
might_sleep();
wait_on_bit(&gh->gh_iflags, HIF_WAIT, TASK_UNINTERRUPTIBLE);
if (time_after(jiffies, time1 + HZ)) /* have we waited > a second? */
/* Lengthen the minimum hold time. */
gh->gh_gl->gl_hold_time = min(gh->gh_gl->gl_hold_time +
GL_GLOCK_HOLD_INCR,
GL_GLOCK_MAX_HOLD);
gfs2_glock_update_hold_time(gh->gh_gl, start_time);
return gh->gh_error;
}