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authorJiang Yi <jiangyilism@gmail.com>2017-08-11 11:29:44 +0800
committerNicholas Bellinger <nab@linux-iscsi.org>2017-11-04 14:45:16 -0700
commit594e25e73440863981032d76c9b1e33409ceff6e (patch)
tree932965773742a5cd807a4768a15a92eee8a8632a /kernel
parentbb176f67090ca54869fc1262c913aa69d2ede070 (diff)
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target/file: Do not return error for UNMAP if length is zero
The function fd_execute_unmap() in target_core_file.c calles ret = file->f_op->fallocate(file, mode, pos, len); Some filesystems implement fallocate() to return error if length is zero (e.g. btrfs) but according to SCSI Block Commands spec UNMAP should return success for zero length. Signed-off-by: Jiang Yi <jiangyilism@gmail.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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