/* * Common values for SHA-3 algorithms */ #ifndef __CRYPTO_SHA3_H__ #define __CRYPTO_SHA3_H__ #define SHA3_224_DIGEST_SIZE (224 / 8) #define SHA3_224_BLOCK_SIZE (200 - 2 * SHA3_224_DIGEST_SIZE) #define SHA3_256_DIGEST_SIZE (256 / 8) #define SHA3_256_BLOCK_SIZE (200 - 2 * SHA3_256_DIGEST_SIZE) #define SHA3_384_DIGEST_SIZE (384 / 8) #define SHA3_384_BLOCK_SIZE (200 - 2 * SHA3_384_DIGEST_SIZE) #define SHA3_512_DIGEST_SIZE (512 / 8) #define SHA3_512_BLOCK_SIZE (200 - 2 * SHA3_512_DIGEST_SIZE) struct sha3_state { u64 st[25]; unsigned int md_len; unsigned int rsiz; unsigned int rsizw; unsigned int partial; u8 buf[SHA3_224_BLOCK_SIZE]; }; #endif omap_write_end+0x80/0x80 fs/iomap.c:150 iomap_apply+0xb3/0x130 fs/iomap.c:79 iomap_file_buffered_write+0x68/0xa0 fs/iomap.c:243 ? iomap_write_end+0x80/0x80 xfs_file_buffered_aio_write+0x132/0x390 [xfs] ? remove_wait_queue+0x59/0x60 xfs_file_write_iter+0x90/0x130 [xfs] __vfs_write+0xe5/0x140 vfs_write+0xc7/0x1f0 ? syscall_trace_enter+0x1d0/0x380 SyS_write+0x58/0xc0 do_syscall_64+0x6c/0x200 entry_SYSCALL64_slow_path+0x25/0x25 the oom victim has access to all memory reserves to make a forward progress to exit easier. But iomap_file_buffered_write and other callers of iomap_apply loop to complete the full request. We need to check for fatal signals and back off with a short write instead. As the iomap_apply delegates all the work down to the actor we have to hook into those. All callers that work with the page cache are calling iomap_write_begin so we will check for signals there. dax_iomap_actor has to handle the situation explicitly because it copies data to the userspace directly. Other callers like iomap_page_mkwrite work on a single page or iomap_fiemap_actor do not allocate memory based on the given len. Fixes: 68a9f5e7007c ("xfs: implement iomap based buffered write path") Link: http://lkml.kernel.org/r/20170201092706.9966-2-mhocko@kernel.org Signed-off-by: Michal Hocko Reported-by: Tetsuo Handa Reviewed-by: Christoph Hellwig Cc: Al Viro Cc: [4.8+] Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/dax.c | 5 +++++ fs/iomap.c | 3 +++ 2 files changed, 8 insertions(+) '038b9404d4e2db4fbc03d5d2203abafc6e188528'/>

path: root/include/dt-bindings/memory/mt2701-larb-port.h

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