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authorShin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>2020-08-19 10:34:48 +0900
committerJaegeuk Kim <jaegeuk@kernel.org>2020-09-08 20:31:33 -0700
commit123aaf774f70ba48fb9ab064b6ce75a9b64d7b85 (patch)
tree2e44c6a19c7af918f74464b51dd26830dd7c7955 /fs/f2fs/node.c
parent34d4ddd359dbcdf6c5fb3f85a179243d7a1cb7f8 (diff)
f2fs: Fix type of section block count variables
Commit da52f8ade40b ("f2fs: get the right gc victim section when section has several segments") added code to count blocks of each section using variables with type 'unsigned short', which has 2 bytes size in many systems. However, the counts can be larger than the 2 bytes range and type conversion results in wrong values. Especially when the f2fs sections have blocks as many as USHRT_MAX + 1, the count is handled as 0. This triggers eternal loop in init_dirty_segmap() at mount system call. Fix this by changing the type of the variables to block_t. Fixes: da52f8ade40b ("f2fs: get the right gc victim section when section has several segments") Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/node.c')
0 files changed, 0 insertions, 0 deletions