diff options
| author |  David Howells <dhowells@redhat.com>
| 2020-09-22 11:06:07 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com>
| 2021-04-23 10:14:32 +0100 |
| commit | e1b1240c1ff5f8bfba797f14996d8bac8a9ec437 (patch) | |
| tree | 47ec7ab0fcf91f97e83f24c625116507d8ecc155 /fs/netfs/stats.c | |
| parent | netfs: Gather stats (diff) | |
| download | linux-e1b1240c1ff5f8bfba797f14996d8bac8a9ec437.tar.gz linux-e1b1240c1ff5f8bfba797f14996d8bac8a9ec437.tar.bz2 linux-e1b1240c1ff5f8bfba797f14996d8bac8a9ec437.zip | |
netfs: Add write_begin helper
Add a helper to do the pre-reading work for the netfs write_begin address
space op.
Changes
v6:
- Fixed a missing rreq put in netfs_write_begin()[3].
- Use DEFINE_READAHEAD()[4].
v5:
- Made the wait for PG_fscache in netfs_write_begin() killable[2].
v4:
- Added flag to netfs_subreq_terminated() to indicate that the caller may
have been running async and stuff that might sleep needs punting to a
workqueue (can't use in_softirq()[1]).
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-and-tested-by: Jeff Layton <jlayton@kernel.org>
Tested-by: Dave Wysochanski <dwysocha@redhat.com>
Tested-By: Marc Dionne <marc.dionne@auristor.com>
cc: Matthew Wilcox <willy@infradead.org>
cc: linux-mm@kvack.org
cc: linux-cachefs@redhat.com
cc: linux-afs@lists.infradead.org
cc: linux-nfs@vger.kernel.org
cc: linux-cifs@vger.kernel.org
cc: ceph-devel@vger.kernel.org
cc: v9fs-developer@lists.sourceforge.net
cc: linux-fsdevel@vger.kernel.org
Link: https://lore.kernel.org/r/20210216084230.GA23669@lst.de/ [1]
Link: https://lore.kernel.org/r/2499407.1616505440@warthog.procyon.org.uk/ [2]
Link: https://lore.kernel.org/r/161781042127.463527.9154479794406046987.stgit@warthog.procyon.org.uk/ [3]
Link: https://lore.kernel.org/r/1234933.1617886271@warthog.procyon.org.uk/ [4]
Link: https://lore.kernel.org/r/160588543960.3465195.2792938973035886168.stgit@warthog.procyon.org.uk/ # rfc
Link: https://lore.kernel.org/r/161118140165.1232039.16418853874312234477.stgit@warthog.procyon.org.uk/ # rfc
Link: https://lore.kernel.org/r/161161035539.2537118.15674887534950908530.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/161340398368.1303470.11242918276563276090.stgit@warthog.procyon.org.uk/ # v3
Link: https://lore.kernel.org/r/161539541541.286939.1889738674057013729.stgit@warthog.procyon.org.uk/ # v4
Link: https://lore.kernel.org/r/161653798616.2770958.17213315845968485563.stgit@warthog.procyon.org.uk/ # v5
Link: https://lore.kernel.org/r/161789080530.6155.1011847312392330491.stgit@warthog.procyon.org.uk/ # v6
Diffstat (limited to 'fs/netfs/stats.c')
| -rw-r--r-- | fs/netfs/stats.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/fs/netfs/stats.c b/fs/netfs/stats.c index df6ff5718f25..9ae538c85378 100644 --- a/fs/netfs/stats.c +++ b/fs/netfs/stats.c @@ -24,19 +24,24 @@ atomic_t netfs_n_rh_read_failed; atomic_t netfs_n_rh_zero; atomic_t netfs_n_rh_short_read; atomic_t netfs_n_rh_write; +atomic_t netfs_n_rh_write_begin; atomic_t netfs_n_rh_write_done; atomic_t netfs_n_rh_write_failed; +atomic_t netfs_n_rh_write_zskip; void netfs_stats_show(struct seq_file *m) { - seq_printf(m, "RdHelp : RA=%u RP=%u rr=%u sr=%u\n", + seq_printf(m, "RdHelp : RA=%u RP=%u WB=%u WBZ=%u rr=%u sr=%u\n", atomic_read(&netfs_n_rh_readahead), atomic_read(&netfs_n_rh_readpage), + atomic_read(&netfs_n_rh_write_begin), + atomic_read(&netfs_n_rh_write_zskip), atomic_read(&netfs_n_rh_rreq), atomic_read(&netfs_n_rh_sreq)); - seq_printf(m, "RdHelp : ZR=%u sh=%u\n", + seq_printf(m, "RdHelp : ZR=%u sh=%u sk=%u\n", atomic_read(&netfs_n_rh_zero), - atomic_read(&netfs_n_rh_short_read)); + atomic_read(&netfs_n_rh_short_read), + atomic_read(&netfs_n_rh_write_zskip)); seq_printf(m, "RdHelp : DL=%u ds=%u df=%u di=%u\n", atomic_read(&netfs_n_rh_download), atomic_read(&netfs_n_rh_download_done), |