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When SQUASHFS_CHOICE_DECOMP_BY_MOUNT is set, the "threads" mount option
can be used to specify the decompression mode: single-threaded,
multi-threaded, percpu or the number of threads used for decompression.
When SQUASHFS_CHOICE_DECOMP_BY_MOUNT is not set, SQUASHFS_DECOMP_MULTI and
SQUASHFS_MOUNT_DECOMP_THREADS are both set, the "threads" option can also
be used to specify the number of threads used for decompression. This
mount option is only mentioned in fs/squashfs/Kconfig, which makes it
difficult to find.
Another mount option available is "errors", which can be configured to
panic the kernel when squashfs errors are encountered.
Add both these options to the squashfs documentation, making them more
noticeable.
Link: https://lkml.kernel.org/r/20231117161215.140282-1-amiculas@cisco.com
Signed-off-by: Ariel Miculas <amiculas@cisco.com>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Phillip Lougher <phillip@squashfs.org.uk>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Serge Hallyn <serge@hallyn.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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