mbox series

[0/2] block: Fix __blkdev_issue_write_zeroes() limit handling

Message ID 20240815082755.105242-1-john.g.garry@oracle.com (mailing list archive)
Headers show
Series block: Fix __blkdev_issue_write_zeroes() limit handling | expand

Message

John Garry Aug. 15, 2024, 8:27 a.m. UTC 
As reported in [0], we may get an infinite loop in
__blkdev_issue_write_zeroes() for making an XFS FS on a raid0 config.

Fix __blkdev_issue_write_zeroes() limit handling by reading the write
zeroes limit outside the loop.

Also include a change to drop the unnecessary NULL queue check in
bdev_write_zeroes_sectors().

[0] https://lore.kernel.org/linux-block/20240815062112.GA14067@lst.de/T/#m14ed5d882f9390a46cfe2fcfa2b51218aafbd32e

John Garry (2):
  block: Read max write zeroes once for __blkdev_issue_write_zeroes()
  block: Drop NULL check in bdev_write_zeroes_sectors()

 block/blk-lib.c        | 22 +++++++++++++++-------
 include/linux/blkdev.h |  7 +------
 2 files changed, 16 insertions(+), 13 deletions(-)