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Diffstat (limited to 'fs/f2fs/gc.c')
-rw-r--r--fs/f2fs/gc.c82
1 files changed, 51 insertions, 31 deletions
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index a946ce0ead34..ea5b93b689cd 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -7,7 +7,6 @@
*/
#include <linux/fs.h>
#include <linux/module.h>
-#include <linux/backing-dev.h>
#include <linux/init.h>
#include <linux/f2fs_fs.h>
#include <linux/kthread.h>
@@ -15,6 +14,7 @@
#include <linux/freezer.h>
#include <linux/sched/signal.h>
#include <linux/random.h>
+#include <linux/sched/mm.h>
#include "f2fs.h"
#include "node.h"
@@ -92,22 +92,37 @@ static int gc_thread_func(void *data)
* So, I'd like to wait some time to collect dirty segments.
*/
if (sbi->gc_mode == GC_URGENT_HIGH) {
+ spin_lock(&sbi->gc_urgent_high_lock);
+ if (sbi->gc_urgent_high_limited) {
+ if (!sbi->gc_urgent_high_remaining) {
+ sbi->gc_urgent_high_limited = false;
+ spin_unlock(&sbi->gc_urgent_high_lock);
+ sbi->gc_mode = GC_NORMAL;
+ continue;
+ }
+ sbi->gc_urgent_high_remaining--;
+ }
+ spin_unlock(&sbi->gc_urgent_high_lock);
+ }
+
+ if (sbi->gc_mode == GC_URGENT_HIGH ||
+ sbi->gc_mode == GC_URGENT_MID) {
wait_ms = gc_th->urgent_sleep_time;
- down_write(&sbi->gc_lock);
+ f2fs_down_write(&sbi->gc_lock);
goto do_gc;
}
if (foreground) {
- down_write(&sbi->gc_lock);
+ f2fs_down_write(&sbi->gc_lock);
goto do_gc;
- } else if (!down_write_trylock(&sbi->gc_lock)) {
+ } else if (!f2fs_down_write_trylock(&sbi->gc_lock)) {
stat_other_skip_bggc_count(sbi);
goto next;
}
if (!is_idle(sbi, GC_TIME)) {
increase_sleep_time(gc_th, &wait_ms);
- up_write(&sbi->gc_lock);
+ f2fs_up_write(&sbi->gc_lock);
stat_io_skip_bggc_count(sbi);
goto next;
}
@@ -947,7 +962,7 @@ next_step:
continue;
}
- if (f2fs_get_node_info(sbi, nid, &ni)) {
+ if (f2fs_get_node_info(sbi, nid, &ni, false)) {
f2fs_put_page(node_page, 1);
continue;
}
@@ -1015,7 +1030,7 @@ static bool is_alive(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
if (IS_ERR(node_page))
return false;
- if (f2fs_get_node_info(sbi, nid, dni)) {
+ if (f2fs_get_node_info(sbi, nid, dni, false)) {
f2fs_put_page(node_page, 1);
return false;
}
@@ -1026,6 +1041,11 @@ static bool is_alive(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
set_sbi_flag(sbi, SBI_NEED_FSCK);
}
+ if (f2fs_check_nid_range(sbi, dni->ino)) {
+ f2fs_put_page(node_page, 1);
+ return false;
+ }
+
*nofs = ofs_of_node(node_page);
source_blkaddr = data_blkaddr(NULL, node_page, ofs_in_node);
f2fs_put_page(node_page, 1);
@@ -1039,7 +1059,7 @@ static bool is_alive(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
if (!test_and_set_bit(segno, SIT_I(sbi)->invalid_segmap)) {
f2fs_err(sbi, "mismatched blkaddr %u (source_blkaddr %u) in seg %u",
blkaddr, source_blkaddr, segno);
- f2fs_bug_on(sbi, 1);
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
}
}
#endif
@@ -1206,7 +1226,7 @@ static int move_data_block(struct inode *inode, block_t bidx,
f2fs_wait_on_block_writeback(inode, dn.data_blkaddr);
- err = f2fs_get_node_info(fio.sbi, dn.nid, &ni);
+ err = f2fs_get_node_info(fio.sbi, dn.nid, &ni, false);
if (err)
goto put_out;
@@ -1215,7 +1235,7 @@ static int move_data_block(struct inode *inode, block_t bidx,
fio.new_blkaddr = fio.old_blkaddr = dn.data_blkaddr;
if (lfs_mode)
- down_write(&fio.sbi->io_order_lock);
+ f2fs_down_write(&fio.sbi->io_order_lock);
mpage = f2fs_grab_cache_page(META_MAPPING(fio.sbi),
fio.old_blkaddr, false);
@@ -1301,7 +1321,7 @@ recover_block:
true, true, true);
up_out:
if (lfs_mode)
- up_write(&fio.sbi->io_order_lock);
+ f2fs_up_write(&fio.sbi->io_order_lock);
put_out:
f2fs_put_dnode(&dn);
out:
@@ -1375,8 +1395,7 @@ retry:
if (err) {
clear_page_private_gcing(page);
if (err == -ENOMEM) {
- congestion_wait(BLK_RW_ASYNC,
- DEFAULT_IO_TIMEOUT);
+ memalloc_retry_wait(GFP_NOFS);
goto retry;
}
if (is_dirty)
@@ -1457,10 +1476,11 @@ next_step:
if (phase == 3) {
inode = f2fs_iget(sb, dni.ino);
- if (IS_ERR(inode) || is_bad_inode(inode))
+ if (IS_ERR(inode) || is_bad_inode(inode) ||
+ special_file(inode->i_mode))
continue;
- if (!down_write_trylock(
+ if (!f2fs_down_write_trylock(
&F2FS_I(inode)->i_gc_rwsem[WRITE])) {
iput(inode);
sbi->skipped_gc_rwsem++;
@@ -1473,7 +1493,7 @@ next_step:
if (f2fs_post_read_required(inode)) {
int err = ra_data_block(inode, start_bidx);
- up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+ f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
if (err) {
iput(inode);
continue;
@@ -1484,7 +1504,7 @@ next_step:
data_page = f2fs_get_read_data_page(inode,
start_bidx, REQ_RAHEAD, true);
- up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+ f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
if (IS_ERR(data_page)) {
iput(inode);
continue;
@@ -1503,14 +1523,14 @@ next_step:
int err;
if (S_ISREG(inode->i_mode)) {
- if (!down_write_trylock(&fi->i_gc_rwsem[READ])) {
+ if (!f2fs_down_write_trylock(&fi->i_gc_rwsem[READ])) {
sbi->skipped_gc_rwsem++;
continue;
}
- if (!down_write_trylock(
+ if (!f2fs_down_write_trylock(
&fi->i_gc_rwsem[WRITE])) {
sbi->skipped_gc_rwsem++;
- up_write(&fi->i_gc_rwsem[READ]);
+ f2fs_up_write(&fi->i_gc_rwsem[READ]);
continue;
}
locked = true;
@@ -1533,8 +1553,8 @@ next_step:
submitted++;
if (locked) {
- up_write(&fi->i_gc_rwsem[WRITE]);
- up_write(&fi->i_gc_rwsem[READ]);
+ f2fs_up_write(&fi->i_gc_rwsem[WRITE]);
+ f2fs_up_write(&fi->i_gc_rwsem[READ]);
}
stat_inc_data_blk_count(sbi, 1, gc_type);
@@ -1792,7 +1812,7 @@ stop:
reserved_segments(sbi),
prefree_segments(sbi));
- up_write(&sbi->gc_lock);
+ f2fs_up_write(&sbi->gc_lock);
put_gc_inode(&gc_list);
@@ -1921,7 +1941,7 @@ static void update_sb_metadata(struct f2fs_sb_info *sbi, int secs)
long long block_count;
int segs = secs * sbi->segs_per_sec;
- down_write(&sbi->sb_lock);
+ f2fs_down_write(&sbi->sb_lock);
section_count = le32_to_cpu(raw_sb->section_count);
segment_count = le32_to_cpu(raw_sb->segment_count);
@@ -1942,7 +1962,7 @@ static void update_sb_metadata(struct f2fs_sb_info *sbi, int secs)
cpu_to_le32(dev_segs + segs);
}
- up_write(&sbi->sb_lock);
+ f2fs_up_write(&sbi->sb_lock);
}
static void update_fs_metadata(struct f2fs_sb_info *sbi, int secs)
@@ -2016,7 +2036,7 @@ int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count)
secs = div_u64(shrunk_blocks, BLKS_PER_SEC(sbi));
/* stop other GC */
- if (!down_write_trylock(&sbi->gc_lock))
+ if (!f2fs_down_write_trylock(&sbi->gc_lock))
return -EAGAIN;
/* stop CP to protect MAIN_SEC in free_segment_range */
@@ -2036,15 +2056,15 @@ int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count)
out_unlock:
f2fs_unlock_op(sbi);
- up_write(&sbi->gc_lock);
+ f2fs_up_write(&sbi->gc_lock);
if (err)
return err;
set_sbi_flag(sbi, SBI_IS_RESIZEFS);
freeze_super(sbi->sb);
- down_write(&sbi->gc_lock);
- down_write(&sbi->cp_global_sem);
+ f2fs_down_write(&sbi->gc_lock);
+ f2fs_down_write(&sbi->cp_global_sem);
spin_lock(&sbi->stat_lock);
if (shrunk_blocks + valid_user_blocks(sbi) +
@@ -2089,8 +2109,8 @@ recover_out:
spin_unlock(&sbi->stat_lock);
}
out_err:
- up_write(&sbi->cp_global_sem);
- up_write(&sbi->gc_lock);
+ f2fs_up_write(&sbi->cp_global_sem);
+ f2fs_up_write(&sbi->gc_lock);
thaw_super(sbi->sb);
clear_sbi_flag(sbi, SBI_IS_RESIZEFS);
return err;
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