]> git.baikalelectronics.ru Git - kernel.git/commit
target/file: Do not return error for UNMAP if length is zero
authorJiang Yi <jiangyilism@gmail.com>
Fri, 11 Aug 2017 03:29:44 +0000 (11:29 +0800)
committerNicholas Bellinger <nab@linux-iscsi.org>
Sat, 4 Nov 2017 21:45:16 +0000 (14:45 -0700)
commit594e25e73440863981032d76c9b1e33409ceff6e
tree932965773742a5cd807a4768a15a92eee8a8632a
parentbb176f67090ca54869fc1262c913aa69d2ede070
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>
drivers/target/target_core_file.c