Btrfs: introduce convert_extent_bit

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If I have a range where I know a certain bit is and I want to set it to another
bit the only option I have is to call set and then clear bit, which will result
in 2 tree searches.  This is inefficient, so introduce convert_extent_bit which
will go through and set the bit I want and clear the old bit I don't want.
Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>

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Josef Bacik 2011-09-26 13:56:12 -04:00

parent ef3be45722

commit 462d6fac89

2 changed files with 190 additions and 0 deletions

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188

fs/btrfs/extent_io.c

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2

fs/btrfs/extent_io.h

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