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authorJaegeuk Kim <jaegeuk@kernel.org>2017-12-07 16:25:39 -0800
committerJaegeuk Kim <jaegeuk@kernel.org>2018-01-22 14:56:35 -0800
commit1ad71a27124caf0b68ddd3c92be01aa2b2a72b2a (patch)
tree802af8c30b004b0a3c439a9b23d25a69b9aaef5e /fs/f2fs/gc.c
parent9ac1e2d88d076aa1ae9e33d44a9bbc8ae3bfa791 (diff)
f2fs: add an ioctl to disable GC for specific file
This patch gives a flag to disable GC on given file, which would be useful, when user wants to keep its block map. It also conducts in-place-update for dontmove file. Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/gc.c')
-rw-r--r--fs/f2fs/gc.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index d844dcb80570..33e79697e41c 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -624,6 +624,11 @@ static void move_data_block(struct inode *inode, block_t bidx,
if (f2fs_is_atomic_file(inode))
goto out;
+ if (f2fs_is_pinned_file(inode)) {
+ f2fs_pin_file_control(inode, true);
+ goto out;
+ }
+
set_new_dnode(&dn, inode, NULL, NULL, 0);
err = get_dnode_of_data(&dn, bidx, LOOKUP_NODE);
if (err)
@@ -720,6 +725,11 @@ static void move_data_page(struct inode *inode, block_t bidx, int gc_type,
if (f2fs_is_atomic_file(inode))
goto out;
+ if (f2fs_is_pinned_file(inode)) {
+ if (gc_type == FG_GC)
+ f2fs_pin_file_control(inode, true);
+ goto out;
+ }
if (gc_type == BG_GC) {
if (PageWriteback(page))
@@ -1091,6 +1101,7 @@ void build_gc_manager(struct f2fs_sb_info *sbi)
sbi->fggc_threshold = div64_u64((main_count - ovp_count) *
BLKS_PER_SEC(sbi), (main_count - resv_count));
+ sbi->gc_pin_file_threshold = DEF_GC_FAILED_PINNED_FILES;
/* give warm/cold data area from slower device */
if (sbi->s_ndevs && sbi->segs_per_sec == 1)