fs: introduce bgl_lock_ptr()

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As suggested by Andreas Dilger, introduce a bgl_lock_ptr() helper in
<linux/blockgroup_lock.h> and add separate sb_bgl_lock() helpers to
filesystem specific header files to break the hidden dependency to
struct ext[234]_sb_info.

Also, while at it, convert the macros to static inlines to try make up
for all the times I broke Andrew Morton's tree.

Acked-by: Andreas Dilger <adilger@sun.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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Pekka Enberg 2009-01-04 12:00:48 -08:00 • committed by Linus Torvalds

parent 0a30c5cefa

commit c644f0e4b5

4 changed files with 23 additions and 2 deletions

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7

include/linux/blockgroup_lock.h

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6

include/linux/ext2_fs_sb.h

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6

include/linux/ext3_fs_sb.h

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