Christoph Hellwig f78e2c3660 iomap: fix sub-page uptodate handling ...

commit 1cea335d1d upstream.

bio completions can race when a page spans more than one file system
block.  Add a spinlock to synchronize marking the page uptodate.

Fixes: 9dc55f1389 ("iomap: add support for sub-pagesize buffered I/O without buffer heads")
Reported-by: Jan Stancek <jstancek@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2021-05-19 10:08:30 +02:00

..

apply.c

…

buffered-io.c

iomap: fix sub-page uptodate handling

2021-05-19 10:08:30 +02:00

direct-io.c

iomap: fix WARN_ON_ONCE() from unprivileged users

2020-10-29 09:58:06 +01:00

fiemap.c

…

Makefile

…

seek.c

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swapfile.c

iomap: Fix negative assignment to unsigned sis->pages in iomap_swapfile_activate

2021-04-07 14:47:38 +02:00