# git rev-parse -q --verify f8ad8187c3b536ee2b10502a8340c014204a1af0^{commit} f8ad8187c3b536ee2b10502a8340c014204a1af0 already have revision, skipping fetch # git checkout -q -f -B kisskb f8ad8187c3b536ee2b10502a8340c014204a1af0 # git clean -qxdf # < git log -1 # commit f8ad8187c3b536ee2b10502a8340c014204a1af0 # Author: Johannes Berg # Date: Mon Jan 25 10:16:15 2021 +0100 # # fs/pipe: allow sendfile() to pipe again # # After commit 36e2c7421f02 ("fs: don't allow splice read/write # without explicit ops") sendfile() could no longer send data # from a real file to a pipe, breaking for example certain cgit # setups (e.g. when running behind fcgiwrap), because in this # case cgit will try to do exactly this: sendfile() to a pipe. # # Fix this by using iter_file_splice_write for the splice_write # method of pipes, as suggested by Christoph. # # Cc: stable@vger.kernel.org # Fixes: 36e2c7421f02 ("fs: don't allow splice read/write without explicit ops") # Suggested-by: Christoph Hellwig # Reviewed-by: Christoph Hellwig # Tested-by: Johannes Berg # Signed-off-by: Johannes Berg # Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-gcc --version # < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-ld --version # < git log --format=%s --max-count=1 f8ad8187c3b536ee2b10502a8340c014204a1af0 # < make -s -j 120 ARCH=sparc64 O=/kisskb/build/linus_sparc64-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux- allmodconfig # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_HAVE_FTRACE_MCOUNT_RECORD=n # Added to kconfig CONFIG_SAMPLES=n # Added to kconfig CONFIG_MODULE_SIG=n # < make -s -j 120 ARCH=sparc64 O=/kisskb/build/linus_sparc64-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux- help # make -s -j 120 ARCH=sparc64 O=/kisskb/build/linus_sparc64-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux- olddefconfig # make -s -j 120 ARCH=sparc64 O=/kisskb/build/linus_sparc64-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux- :1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] In file included from /kisskb/src/include/linux/kernel.h:14:0, from /kisskb/src/include/linux/list.h:9, from /kisskb/src/include/linux/module.h:12, from /kisskb/src/drivers/gpu/drm/ttm/ttm_pool.c:34: /kisskb/src/drivers/gpu/drm/ttm/ttm_pool.c: In function 'ttm_pool_alloc': /kisskb/src/include/linux/minmax.h:18:28: warning: comparison of distinct pointer types lacks a cast (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1))) ^ /kisskb/src/include/linux/minmax.h:32:4: note: in expansion of macro '__typecheck' (__typecheck(x, y) && __no_side_effects(x, y)) ^ /kisskb/src/include/linux/minmax.h:42:24: note: in expansion of macro '__safe_cmp' __builtin_choose_expr(__safe_cmp(x, y), \ ^ /kisskb/src/include/linux/minmax.h:51:19: note: in expansion of macro '__careful_cmp' #define min(x, y) __careful_cmp(x, y, <) ^ /kisskb/src/drivers/gpu/drm/ttm/ttm_pool.c:373:15: note: in expansion of macro 'min' for (order = min(MAX_ORDER - 1UL, __fls(num_pages)); num_pages; ^ /kisskb/src/drivers/input/joystick/analog.c:160:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp] #warning Precise timer not defined for this architecture. ^ kernel: arch/sparc/boot/image is ready kernel: arch/sparc/boot/zImage is ready Completed OK # rm -rf /kisskb/build/linus_sparc64-allmodconfig_sparc64 # Build took: 0:09:05.541324