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f2fs: better to wait for fstrim completion 

In android, we'd better wait for fstrim completion instead of issuing the
discard commands asynchronous.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2017-09-09 12:03:23 -07:00
parent 27161f13e3
commit 1eb1ef4a8e
1 changed files with 6 additions and 1 deletions
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7
fs/f2fs/segment.c
View File

@ -17,6 +17,7 @@
#include <linux/swap.h>
#include <linux/timer.h>
#include <linux/freezer.h>
#include <linux/sched/signal.h>
#include "f2fs.h"
#include "segment.h"
@ -1061,6 +1062,9 @@ static int __issue_discard_cmd(struct f2fs_sb_info *sbi, bool issue_cond)
if (dcc->pend_list_tag[i] & P_TRIM) {
__submit_discard_cmd(sbi, dc);
issued++;
if (fatal_signal_pending(current))
break;
continue;
}
@ -1177,7 +1181,7 @@ void stop_discard_thread(struct f2fs_sb_info *sbi)
}
}
/* This comes from f2fs_put_super */
/* This comes from f2fs_put_super and f2fs_trim_fs */
void f2fs_wait_discard_bios(struct f2fs_sb_info *sbi)
{
__issue_discard_cmd(sbi, false);
@ -2212,6 +2216,7 @@ int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range)
}
/* It's time to issue all the filed discards */
mark_discard_range_all(sbi);
f2fs_wait_discard_bios(sbi);
out:
range->len = F2FS_BLK_TO_BYTES(cpc.trimmed);
return err;