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xfs: per-filesystem stats counter implementation

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This patch modifies the stats counting macros and the callers
to those macros to properly increment, decrement, and add-to
the xfs stats counts. The counts for global and per-fs stats
are correctly advanced, and cleared by writing a "1" to the
corresponding clear file.

global counts: /sys/fs/xfs/stats/stats
per-fs counts: /sys/fs/xfs/sda*/stats/stats

global clear:  /sys/fs/xfs/stats/stats_clear
per-fs clear:  /sys/fs/xfs/sda*/stats/stats_clear

[dchinner: cleaned up macro variables, removed CONFIG_FS_PROC around
 stats structures and macros. ]

Signed-off-by: Bill O'Donnell <billodo@redhat.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Bill O'Donnell
2015-10-12 18:21:22 +11:00
committed by Dave Chinner
parent 225e463558
commit ff6d6af235
21 changed files with 131 additions and 118 deletions
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22
fs/xfs/xfs_log.c
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@@ -268,7 +268,7 @@ xlog_grant_head_wait(
__set_current_state(TASK_UNINTERRUPTIBLE);
spin_unlock(&head->lock);
XFS_STATS_INC(xs_sleep_logspace);
XFS_STATS_INC(log->l_mp, xs_sleep_logspace);
trace_xfs_log_grant_sleep(log, tic);
schedule();
@@ -379,7 +379,7 @@ xfs_log_regrant(
if (XLOG_FORCED_SHUTDOWN(log))
return -EIO;
XFS_STATS_INC(xs_try_logspace);
XFS_STATS_INC(mp, xs_try_logspace);
/*
* This is a new transaction on the ticket, so we need to change the
@@ -448,7 +448,7 @@ xfs_log_reserve(
if (XLOG_FORCED_SHUTDOWN(log))
return -EIO;
XFS_STATS_INC(xs_try_logspace);
XFS_STATS_INC(mp, xs_try_logspace);
ASSERT(*ticp == NULL);
tic = xlog_ticket_alloc(log, unit_bytes, cnt, client, permanent,
@@ -1768,7 +1768,7 @@ xlog_sync(
int v2 = xfs_sb_version_haslogv2(&log->l_mp->m_sb);
int size;
XFS_STATS_INC(xs_log_writes);
XFS_STATS_INC(log->l_mp, xs_log_writes);
ASSERT(atomic_read(&iclog->ic_refcnt) == 0);
/* Add for LR header */
@@ -1805,7 +1805,7 @@ xlog_sync(
bp = iclog->ic_bp;
XFS_BUF_SET_ADDR(bp, BLOCK_LSN(be64_to_cpu(iclog->ic_header.h_lsn)));
XFS_STATS_ADD(xs_log_blocks, BTOBB(count));
XFS_STATS_ADD(log->l_mp, xs_log_blocks, BTOBB(count));
/* Do we need to split this write into 2 parts? */
if (XFS_BUF_ADDR(bp) + BTOBB(count) > log->l_logBBsize) {
@@ -2913,7 +2913,7 @@ restart:
iclog = log->l_iclog;
if (iclog->ic_state != XLOG_STATE_ACTIVE) {
XFS_STATS_INC(xs_log_noiclogs);
XFS_STATS_INC(log->l_mp, xs_log_noiclogs);
/* Wait for log writes to have flushed */
xlog_wait(&log->l_flush_wait, &log->l_icloglock);
@@ -3212,7 +3212,7 @@ _xfs_log_force(
struct xlog_in_core *iclog;
xfs_lsn_t lsn;
XFS_STATS_INC(xs_log_force);
XFS_STATS_INC(mp, xs_log_force);
xlog_cil_force(log);
@@ -3297,7 +3297,7 @@ maybe_sleep:
spin_unlock(&log->l_icloglock);
return -EIO;
}
XFS_STATS_INC(xs_log_force_sleep);
XFS_STATS_INC(mp, xs_log_force_sleep);
xlog_wait(&iclog->ic_force_wait, &log->l_icloglock);
/*
* No need to grab the log lock here since we're
@@ -3362,7 +3362,7 @@ _xfs_log_force_lsn(
ASSERT(lsn != 0);
XFS_STATS_INC(xs_log_force);
XFS_STATS_INC(mp, xs_log_force);
lsn = xlog_cil_force_lsn(log, lsn);
if (lsn == NULLCOMMITLSN)
@@ -3411,7 +3411,7 @@ try_again:
(XLOG_STATE_WANT_SYNC | XLOG_STATE_SYNCING))) {
ASSERT(!(iclog->ic_state & XLOG_STATE_IOERROR));
XFS_STATS_INC(xs_log_force_sleep);
XFS_STATS_INC(mp, xs_log_force_sleep);
xlog_wait(&iclog->ic_prev->ic_write_wait,
&log->l_icloglock);
@@ -3441,7 +3441,7 @@ try_again:
spin_unlock(&log->l_icloglock);
return -EIO;
}
XFS_STATS_INC(xs_log_force_sleep);
XFS_STATS_INC(mp, xs_log_force_sleep);
xlog_wait(&iclog->ic_force_wait, &log->l_icloglock);
/*
* No need to grab the log lock here since we're