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| author |   Matthew Wilcox (Oracle) <willy@infradead.org> | 2023-03-27 18:45:15 +0100 |
|---|---|---|
| committer |   Andrew Morton <akpm@linux-foundation.org> | 2023-04-05 19:43:00 -0700 |
| commit | 58ef47ef7db9dfc2730dc039498cc76130ea3c3d (patch) | |
| tree | d54aff16b7b756de9cac97a3eadcda5579fe9d4a /kernel/fork.c | |
| parent | afs: split afs_pagecache_valid() out of afs_validate() (diff) | |
| download | linux-rng-58ef47ef7db9dfc2730dc039498cc76130ea3c3d.tar.xz linux-rng-58ef47ef7db9dfc2730dc039498cc76130ea3c3d.zip | |
mm: hold the RCU read lock over calls to ->map_pages
Prevent filesystems from doing things which sleep in their map_pages
method. This is in preparation for a pagefault path protected only by
RCU.
Link: https://lkml.kernel.org/r/20230327174515.1811532-4-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Darrick J. Wong <djwong@kernel.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'kernel/fork.c')
0 files changed, 0 insertions, 0 deletions