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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
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@ -140,6 +140,7 @@ ssize_t netfs_unbuffered_write_iter(struct kiocb *iocb, struct iov_iter *from)
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_enter("%llx,%zx,%llx", iocb->ki_pos, iov_iter_count(from), i_size_read(inode));
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trace_netfs_write_iter(iocb, from);
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netfs_stat(&netfs_n_rh_dio_write);
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ret = netfs_start_io_direct(inode);
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if (ret < 0)
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@ -104,6 +104,7 @@ int netfs_end_writethrough(struct netfs_io_request *wreq, struct kiocb *iocb);
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*/
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#ifdef CONFIG_NETFS_STATS
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extern atomic_t netfs_n_rh_dio_read;
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extern atomic_t netfs_n_rh_dio_write;
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extern atomic_t netfs_n_rh_readahead;
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extern atomic_t netfs_n_rh_readpage;
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extern atomic_t netfs_n_rh_rreq;
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@ -10,6 +10,7 @@
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#include "internal.h"
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atomic_t netfs_n_rh_dio_read;
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atomic_t netfs_n_rh_dio_write;
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atomic_t netfs_n_rh_readahead;
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atomic_t netfs_n_rh_readpage;
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atomic_t netfs_n_rh_rreq;
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@ -37,14 +38,13 @@ atomic_t netfs_n_wh_write_failed;
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int netfs_stats_show(struct seq_file *m, void *v)
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{
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seq_printf(m, "Netfs : DR=%u RA=%u RP=%u WB=%u WBZ=%u rr=%u sr=%u\n",
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seq_printf(m, "Netfs : DR=%u DW=%u RA=%u RP=%u WB=%u WBZ=%u\n",
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atomic_read(&netfs_n_rh_dio_read),
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atomic_read(&netfs_n_rh_dio_write),
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atomic_read(&netfs_n_rh_readahead),
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atomic_read(&netfs_n_rh_readpage),
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atomic_read(&netfs_n_rh_write_begin),
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atomic_read(&netfs_n_rh_write_zskip),
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atomic_read(&netfs_n_rh_rreq),
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atomic_read(&netfs_n_rh_sreq));
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atomic_read(&netfs_n_rh_write_zskip));
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seq_printf(m, "Netfs : ZR=%u sh=%u sk=%u\n",
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atomic_read(&netfs_n_rh_zero),
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atomic_read(&netfs_n_rh_short_read),
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@ -66,6 +66,9 @@ int netfs_stats_show(struct seq_file *m, void *v)
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atomic_read(&netfs_n_wh_write),
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atomic_read(&netfs_n_wh_write_done),
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atomic_read(&netfs_n_wh_write_failed));
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seq_printf(m, "Netfs : rr=%u sr=%u\n",
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atomic_read(&netfs_n_rh_rreq),
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atomic_read(&netfs_n_rh_sreq));
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return fscache_stats_show(m);
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}
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EXPORT_SYMBOL(netfs_stats_show);
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