diff mbox series

[v3,4/5] f2fs: guard blkdev_zone_mgmt with nofs scope

Message ID 20240128-zonefs_nofs-v3-4-ae3b7c8def61@wdc.com (mailing list archive)
State Not Applicable, archived
Delegated to: Mike Snitzer
Headers show
Series block: remove gfp_mask for blkdev_zone_mgmt() | expand

Commit Message

Johannes Thumshirn Jan. 29, 2024, 7:52 a.m. UTC 
Guard the calls to blkdev_zone_mgmt() with a memalloc_nofs scope.
This helps us getting rid of the GFP_NOFS argument to blkdev_zone_mgmt();

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
---
 fs/f2fs/segment.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

Comments

Damien Le Moal Jan. 29, 2024, 11:27 p.m. UTC | #1 
On 1/29/24 16:52, Johannes Thumshirn wrote:
> Guard the calls to blkdev_zone_mgmt() with a memalloc_nofs scope.
> This helps us getting rid of the GFP_NOFS argument to blkdev_zone_mgmt();
> 
> Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>

Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Chao Yu Jan. 31, 2024, 7:32 a.m. UTC | #2 
On 2024/1/29 15:52, Johannes Thumshirn wrote:
> Guard the calls to blkdev_zone_mgmt() with a memalloc_nofs scope.
> This helps us getting rid of the GFP_NOFS argument to blkdev_zone_mgmt();
> 
> Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>

Reviewed-by: Chao Yu <chao@kernel.org>

Thanks,
diff mbox series

Patch

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 4c8836ded90f..0094fe491364 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1971,9 +1971,15 @@  static int __f2fs_issue_discard_zone(struct f2fs_sb_info *sbi,
 		}
 
 		if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) {
+			unsigned int nofs_flags;
+			int ret;
+
 			trace_f2fs_issue_reset_zone(bdev, blkstart);
-			return blkdev_zone_mgmt(bdev, REQ_OP_ZONE_RESET,
-						sector, nr_sects, GFP_NOFS);
+			nofs_flags = memalloc_nofs_save();
+			ret = blkdev_zone_mgmt(bdev, REQ_OP_ZONE_RESET,
+						sector, nr_sects, GFP_KERNEL);
+			memalloc_nofs_restore(nofs_flags);
+			return ret;
 		}
 
 		__queue_zone_reset_cmd(sbi, bdev, blkstart, lblkstart, blklen);
@@ -4865,6 +4871,7 @@  static int check_zone_write_pointer(struct f2fs_sb_info *sbi,
 	block_t zone_block, valid_block_cnt;
 	unsigned int log_sectors_per_block = sbi->log_blocksize - SECTOR_SHIFT;
 	int ret;
+	unsigned int nofs_flags;
 
 	if (zone->type != BLK_ZONE_TYPE_SEQWRITE_REQ)
 		return 0;
@@ -4912,8 +4919,10 @@  static int check_zone_write_pointer(struct f2fs_sb_info *sbi,
 		    "pointer: valid block[0x%x,0x%x] cond[0x%x]",
 		    zone_segno, valid_block_cnt, zone->cond);
 
+	nofs_flags = memalloc_nofs_save();
 	ret = blkdev_zone_mgmt(fdev->bdev, REQ_OP_ZONE_FINISH,
-				zone->start, zone->len, GFP_NOFS);
+				zone->start, zone->len, GFP_KERNEL);
+	memalloc_nofs_restore(nofs_flags);
 	if (ret == -EOPNOTSUPP) {
 		ret = blkdev_issue_zeroout(fdev->bdev, zone->wp,
 					zone->len - (zone->wp - zone->start),