Btrfs: Use a mutex in the extent buffer for tree block locking

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This replaces the use of the page cache lock bit for locking, which wasn't
suitable for block size < page size and couldn't be used recursively.

The mutexes alone don't fix either problem, but they are the first step.

Signed-off-by: Chris Mason <chris.mason@oracle.com>

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This commit is contained in:

Chris Mason 2008-07-22 11:18:08 -04:00

parent 6af118ce51

commit a61e6f29dc

4 changed files with 17 additions and 13 deletions

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7

fs/btrfs/extent-tree.c

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9

fs/btrfs/extent_io.c

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1

fs/btrfs/extent_io.h

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13

fs/btrfs/locking.c

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