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| author | Christoph Hellwig <hch@lst.de> | 2015-12-21 10:51:01 +1100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.com> | 2016-01-06 11:39:43 +1100 |
| commit | ad66d445ee5a5f548142b880e1642c711fbcacd1 (patch) | |
| tree | 517796bd27c55de0e18b3a52257af4e401fed281 /drivers/md | |
| parent | 3848c0bcb09c7b78e6f4ae9f8fc8d6d9aecbd35a (diff) | |
| download | linux-ad66d445ee5a5f548142b880e1642c711fbcacd1.tar.gz linux-ad66d445ee5a5f548142b880e1642c711fbcacd1.tar.bz2 linux-ad66d445ee5a5f548142b880e1642c711fbcacd1.zip | |
raid5-cache: free meta_page earlier
Once the I/O completed we don't need the meta page anymore. As the iounits
can live on for a long time this reduces memory pressure a bit.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Shaohua Li <shli@fb.com>
Signed-off-by: NeilBrown <neilb@suse.com>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/raid5-cache.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c index 3699c4704ba8..668e973f07e6 100644 --- a/drivers/md/raid5-cache.c +++ b/drivers/md/raid5-cache.c @@ -150,12 +150,6 @@ static bool r5l_has_free_space(struct r5l_log *log, sector_t size) return log->device_size > used_size + size; } -static void r5l_free_io_unit(struct r5l_log *log, struct r5l_io_unit *io) -{ - __free_page(io->meta_page); - kmem_cache_free(log->io_kc, io); -} - static void __r5l_set_io_unit_state(struct r5l_io_unit *io, enum r5l_io_unit_state state) { @@ -215,6 +209,7 @@ static void r5l_log_endio(struct bio *bio) md_error(log->rdev->mddev, log->rdev); bio_put(bio); + __free_page(io->meta_page); spin_lock_irqsave(&log->io_list_lock, flags); __r5l_set_io_unit_state(io, IO_UNIT_IO_END); @@ -552,7 +547,7 @@ static bool r5l_complete_finished_ios(struct r5l_log *log) log->next_cp_seq = io->seq; list_del(&io->log_sibling); - r5l_free_io_unit(log, io); + kmem_cache_free(log->io_kc, io); found = true; } |