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vfs: abort dedupe loop if fatal signals are pending 

If the program running dedupe receives a fatal signal during the
dedupe loop, we should bail out to avoid tying up the system.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Darrick J. Wong 2016-01-22 16:58:28 -08:00 committed by Al Viro
parent 3ed47db34f
commit e62e560fc8
1 changed files with 3 additions and 0 deletions
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3
fs/read_write.c
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@ -1656,6 +1656,9 @@ int vfs_dedupe_file_range(struct file *file, struct file_dedupe_range *same)
mnt_drop_write_file(dst_file); mnt_drop_write_file(dst_file);
next_loop: next_loop:
fdput(dst_fd); fdput(dst_fd);
if (fatal_signal_pending(current))
goto out;
} }
out: out: