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(parent: 07d19dc) | patch
vfs: skip zero-length dedupe requests
authorDarrick J. Wong <darrick.wong@oracle.com>
Mon, 29 Oct 2018 23:41:01 +0000 (10:41 +1100)
committerDave Chinner <david@fromorbit.com>
Mon, 29 Oct 2018 23:41:01 +0000 (10:41 +1100)
commit9aae20500d9cd3e7d55d0536d359bdd1c869db89
tree030cee6e5d4a6d1a3f4efae5797e82789b1af136tree | snapshot
parent07d19dc9fbe9128378b9e226abe886fd8fd473dfcommit | diff
vfs: skip zero-length dedupe requests

Don't bother calling the filesystem for a zero-length dedupe request;
we can return zero and exit.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
fs/read_write.c diff | blob | history
Linux Kernel Source Tree.