mbox series

[0/3] Add and use bdev_getblk()

Message ID 20230811161528.506437-1-willy@infradead.org (mailing list archive)
Headers show
Series Add and use bdev_getblk() | expand

Message

Matthew Wilcox Aug. 11, 2023, 4:15 p.m. UTC 
This patch series fixes a bug reported by Hui Zhu; see proposed
patches v1 and v2:
https://lore.kernel.org/linux-fsdevel/20230811035705.3296-1-teawaterz@linux.alibaba.com/
https://lore.kernel.org/linux-fsdevel/20230811071519.1094-1-teawaterz@linux.alibaba.com/

I decided to go in a rather different direction for this fix, and
fix a related problem at the same time.  I don't think there's any
urgency to rush this into Linus' tree, nor have I marked it for stable.
Reasonable people may disagree.

Matthew Wilcox (Oracle) (3):
  buffer: Pass GFP flags to folio_alloc_buffers()
  buffer: Hoist GFP flags from grow_dev_page() to __getblk_gfp()
  ext4: Use bdev_getblk() to avoid memory reclaim in readahead path

 fs/buffer.c                 | 75 +++++++++++++++++++++++--------------
 fs/ext4/super.c             |  3 +-
 include/linux/buffer_head.h |  4 +-
 3 files changed, 52 insertions(+), 30 deletions(-)