__blkdev_issue_discard() in __submit_discard_cmd() will never fail, so let's make FAULT_DISCARD fault injection obsolete.
Signed-off-by: Chao Yu <[email protected]> --- Documentation/ABI/testing/sysfs-fs-f2fs | 2 +- Documentation/filesystems/f2fs.rst | 2 +- fs/f2fs/f2fs.h | 2 +- fs/f2fs/segment.c | 18 +++--------------- 4 files changed, 6 insertions(+), 18 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index 770470e0598b..7920c233d8ec 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -732,7 +732,7 @@ Description: Support configuring fault injection type, should be FAULT_TRUNCATE 0x00000400 FAULT_READ_IO 0x00000800 FAULT_CHECKPOINT 0x00001000 - FAULT_DISCARD 0x00002000 + FAULT_DISCARD 0x00002000 (obsolete) FAULT_WRITE_IO 0x00004000 FAULT_SLAB_ALLOC 0x00008000 FAULT_DQUOT_INIT 0x00010000 diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst index 9b3b835a174e..27aa4032c7cd 100644 --- a/Documentation/filesystems/f2fs.rst +++ b/Documentation/filesystems/f2fs.rst @@ -206,7 +206,7 @@ fault_type=%d Support configuring fault injection type, should be FAULT_TRUNCATE 0x00000400 FAULT_READ_IO 0x00000800 FAULT_CHECKPOINT 0x00001000 - FAULT_DISCARD 0x00002000 + FAULT_DISCARD 0x00002000 (obsolete) FAULT_WRITE_IO 0x00004000 FAULT_SLAB_ALLOC 0x00008000 FAULT_DQUOT_INIT 0x00010000 diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index d7600979218e..65ca1a5eaa88 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -54,7 +54,7 @@ enum { FAULT_TRUNCATE, FAULT_READ_IO, FAULT_CHECKPOINT, - FAULT_DISCARD, + FAULT_DISCARD, /* it's obsolete due to __blkdev_issue_discard() will never fail */ FAULT_WRITE_IO, FAULT_SLAB_ALLOC, FAULT_DQUOT_INIT, diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index c26424f47686..5168026b2960 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1286,7 +1286,6 @@ static int __submit_discard_cmd(struct f2fs_sb_info *sbi, &(dcc->fstrim_list) : &(dcc->wait_list); blk_opf_t flag = dpolicy->sync ? REQ_SYNC : 0; block_t lstart, start, len, total_len; - int err = 0; if (dc->state != D_PREP) return 0; @@ -1327,7 +1326,7 @@ static int __submit_discard_cmd(struct f2fs_sb_info *sbi, dc->di.len = 0; - while (total_len && *issued < dpolicy->max_requests && !err) { + while (total_len && *issued < dpolicy->max_requests) { struct bio *bio = NULL; unsigned long flags; bool last = true; @@ -1343,17 +1342,6 @@ static int __submit_discard_cmd(struct f2fs_sb_info *sbi, dc->di.len += len; - err = 0; - if (time_to_inject(sbi, FAULT_DISCARD)) { - err = -EIO; - spin_lock_irqsave(&dc->lock, flags); - if (dc->state == D_PARTIAL) - dc->state = D_SUBMIT; - spin_unlock_irqrestore(&dc->lock, flags); - - break; - } - __blkdev_issue_discard(bdev, SECTOR_FROM_BLOCK(start), SECTOR_FROM_BLOCK(len), GFP_NOFS, &bio); f2fs_bug_on(sbi, !bio); @@ -1392,11 +1380,11 @@ static int __submit_discard_cmd(struct f2fs_sb_info *sbi, len = total_len; } - if (!err && len) { + if (len) { dcc->undiscard_blks -= len; __update_discard_tree_range(sbi, bdev, lstart, start, len); } - return err; + return 0; } static void __insert_discard_cmd(struct f2fs_sb_info *sbi, -- 2.49.0 _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
