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(parent: 172bd6e) | patch
f2fs: do not preallocate blocks which has wrong buffer
authorJaegeuk Kim <jaegeuk@kernel.org>
Fri, 13 Jan 2017 21:12:29 +0000 (13:12 -0800)
committerJaegeuk Kim <jaegeuk@kernel.org>
Thu, 23 Feb 2017 04:24:48 +0000 (20:24 -0800)
commit588c04669cb5d6ec628a2ca23f2b6ffea82669a8
treed78cc69fe7a50db8a8c3207cb532eab76c051bfdtree | snapshot
parent172bd6e312df51f460da268a9d77f652fe5d2f49commit | diff
f2fs: do not preallocate blocks which has wrong buffer

Sheng Yong reports needless preallocation if write(small_buffer, large_size)
is called.

In that case, f2fs preallocates large_size, but vfs returns early due to
small_buffer size. Let's detect it before preallocation phase in f2fs.

Reported-by: Sheng Yong <shengyong1@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
fs/f2fs/data.c diff | blob | history
fs/f2fs/f2fs.h diff | blob | history
fs/f2fs/file.c diff | blob | history
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