xfs: refactor locking and unlocking two inodes against userspace IO

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Refactor the two functions that we use to lock and unlock two inodes to
block userspace from initiating IO against a file, whether via system
calls or mmap activity.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>

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This commit is contained in:

Darrick J. Wong 2020-06-29 14:47:20 -07:00

parent 451d34ee07

commit 10b4bd6c9c

3 changed files with 34 additions and 23 deletions

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2

fs/xfs/xfs_file.c

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52

fs/xfs/xfs_reflink.c

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3

fs/xfs/xfs_reflink.h

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