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netfs: Count DIO writes 

Provide a counter for DIO writes to match that for DIO reads.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com
cc: linux-fsdevel@vger.kernel.org
cc: linux-mm@kvack.org
This commit is contained in:
David Howells 2024-01-05 14:55:52 +00:00
parent 0e4d464cda
commit 4088e38947
3 changed files with 9 additions and 4 deletions
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1
fs/netfs/direct_write.c
View File

@ -140,6 +140,7 @@ ssize_t netfs_unbuffered_write_iter(struct kiocb *iocb, struct iov_iter *from)
_enter("%llx,%zx,%llx", iocb->ki_pos, iov_iter_count(from), i_size_read(inode));
trace_netfs_write_iter(iocb, from);
netfs_stat(&netfs_n_rh_dio_write);
ret = netfs_start_io_direct(inode);
if (ret < 0)

1
fs/netfs/internal.h
View File

@ -104,6 +104,7 @@ int netfs_end_writethrough(struct netfs_io_request *wreq, struct kiocb *iocb);
*/
#ifdef CONFIG_NETFS_STATS
extern atomic_t netfs_n_rh_dio_read;
extern atomic_t netfs_n_rh_dio_write;
extern atomic_t netfs_n_rh_readahead;
extern atomic_t netfs_n_rh_readpage;
extern atomic_t netfs_n_rh_rreq;

11
fs/netfs/stats.c
View File

@ -10,6 +10,7 @@
#include "internal.h"
atomic_t netfs_n_rh_dio_read;
atomic_t netfs_n_rh_dio_write;
atomic_t netfs_n_rh_readahead;
atomic_t netfs_n_rh_readpage;
atomic_t netfs_n_rh_rreq;
@ -37,14 +38,13 @@ atomic_t netfs_n_wh_write_failed;
int netfs_stats_show(struct seq_file *m, void *v)
{
seq_printf(m, "Netfs : DR=%u RA=%u RP=%u WB=%u WBZ=%u rr=%u sr=%u\n",
seq_printf(m, "Netfs : DR=%u DW=%u RA=%u RP=%u WB=%u WBZ=%u\n",
atomic_read(&netfs_n_rh_dio_read),
atomic_read(&netfs_n_rh_dio_write),
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));
atomic_read(&netfs_n_rh_write_zskip));
seq_printf(m, "Netfs : ZR=%u sh=%u sk=%u\n",
atomic_read(&netfs_n_rh_zero),
atomic_read(&netfs_n_rh_short_read),
@ -66,6 +66,9 @@ int netfs_stats_show(struct seq_file *m, void *v)
atomic_read(&netfs_n_wh_write),
atomic_read(&netfs_n_wh_write_done),
atomic_read(&netfs_n_wh_write_failed));
seq_printf(m, "Netfs : rr=%u sr=%u\n",
atomic_read(&netfs_n_rh_rreq),
atomic_read(&netfs_n_rh_sreq));
return fscache_stats_show(m);
}
EXPORT_SYMBOL(netfs_stats_show);