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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-27 21:56:33 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-27 23:00:36 +0300 |
commit | 14e3e989f6a5d9646b6cf60690499cc8bdc11f7d (patch) | |
tree | 3f0bf476ab72b64ed4eff6a6fd101ebbc447e787 /fs/cramfs | |
parent | 52cd5f9c22eeef26d05f9d9338ba4eb38f14dd3a (diff) | |
download | linux-14e3e989f6a5d9646b6cf60690499cc8bdc11f7d.tar.xz |
proc mountinfo: make splice available again
Since commit 36e2c7421f02 ("fs: don't allow splice read/write without
explicit ops") we've required that file operation structures explicitly
enable splice support, rather than falling back to the default handlers.
Most /proc files use the indirect 'struct proc_ops' to describe their
file operations, and were fixed up to support splice earlier in commits
40be821d627c..b24c30c67863, but the mountinfo files interact with the
VFS directly using their own 'struct file_operations' and got missed as
a result.
This adds the necessary support for splice to work for /proc/*/mountinfo
and friends.
Reported-by: Joan Bruguera Micó <joanbrugueram@gmail.com>
Reported-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=209971
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/cramfs')
0 files changed, 0 insertions, 0 deletions