From e902ec9906e844f4613fa6190c6fa65f162dc86e Mon Sep 17 00:00:00 2001 From: Jiro SEKIBA Date: Sat, 30 Jan 2010 18:06:35 +0900 Subject: nilfs2: issue discard request after cleaning segments This adds a function to send discard requests for given array of segment numbers, and calls the function when garbage collection succeeded. Signed-off-by: Jiro SEKIBA Signed-off-by: Ryusuke Konishi --- fs/nilfs2/segment.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'fs/nilfs2/segment.c') diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c index 105b508..9280b0f 100644 --- a/fs/nilfs2/segment.c +++ b/fs/nilfs2/segment.c @@ -2560,6 +2560,16 @@ int nilfs_clean_segments(struct super_block *sb, struct nilfs_argv *argv, set_current_state(TASK_INTERRUPTIBLE); schedule_timeout(sci->sc_interval); } + if (nilfs_test_opt(sbi, DISCARD)) { + int ret = nilfs_discard_segments(nilfs, sci->sc_freesegs, + sci->sc_nfreesegs); + if (ret) { + printk(KERN_WARNING + "NILFS warning: error %d on discard request, " + "turning discards off for the device\n", ret); + nilfs_clear_opt(sbi, DISCARD); + } + } out_unlock: sci->sc_freesegs = NULL; -- cgit v1.1