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authorChristoph Hellwig <hch@lst.de>2024-07-01 18:51:19 +0200
committerJens Axboe <axboe@kernel.dk>2024-07-05 08:53:15 +0200
commit39722a2f2bcd82bdecc226711412d88b54fcb05b (patch)
treeb6c9e3b6d69a44599fe33a509e2ffe9189c0015b /block
parentblock: refacto blkdev_issue_zeroout (diff)
downloadlinux-39722a2f2bcd82bdecc226711412d88b54fcb05b.tar.xz
linux-39722a2f2bcd82bdecc226711412d88b54fcb05b.zip
block: limit the Write Zeroes to manually writing zeroes fallback
Only fall back from hardware Write Zeroes failures when blkdev_issue_write_zeroes returns -EOPNOTSUPP; Note that blkdev_issue_write_zeroes turns any failure into -EOPNOTSUPP when the write zeroes queue limit has been cleared to 0, so this still catches all I/O errors where the driver detected missing support for the hardware acceleration. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Link: https://lore.kernel.org/r/20240701165219.1571322-10-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
-rw-r--r--block/blk-lib.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-lib.c b/block/blk-lib.c
index 9dbab472c63f..2384acd913d2 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -287,7 +287,7 @@ int blkdev_issue_zeroout(struct block_device *bdev, sector_t sector,
if (bdev_write_zeroes_sectors(bdev)) {
ret = blkdev_issue_write_zeroes(bdev, sector, nr_sects,
gfp_mask, flags);
- if (!ret)
+ if (ret != -EOPNOTSUPP)
return ret;
}