Qian Cai a805c11165 iomap: fix WARN_ON_ONCE() from unprivileged users ... It is trivial to trigger a WARN_ON_ONCE(1) in iomap_dio_actor() by unprivileged users which would taint the kernel, or worse - panic if panic_on_warn or panic_on_taint is set. Hence, just convert it to pr_warn_ratelimited() to let users know their workloads are racing. Thank Dave Chinner for the initial analysis of the racing reproducers. Signed-off-by: Qian Cai <cai@lca.pw> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>		2020-09-10 08:26:15 -07:00
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apply.c	iomap: Make sure iomap_end is called after iomap_begin	2020-07-06 10:49:27 -07:00
buffered-io.c	New code for 5.8:	2020-06-13 12:44:30 -07:00
direct-io.c	iomap: fix WARN_ON_ONCE() from unprivileged users	2020-09-10 08:26:15 -07:00
fiemap.c	fs: handle FIEMAP_FLAG_SYNC in fiemap_prep	2020-06-03 23:16:55 -04:00
Makefile	iomap: lift common tracing code from xfs to iomap	2019-10-21 08:51:59 -07:00
seek.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
swapfile.c	iomap: use a srcmap for a read-modify-write I/O	2019-10-21 08:51:59 -07:00
trace.c	iomap: lift common tracing code from xfs to iomap	2019-10-21 08:51:59 -07:00
trace.h	iomap: fall back to buffered writes for invalidation failures	2020-08-05 09:24:16 -07:00