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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-11-29 10:49:50 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-11-29 10:52:19 -0800 |
| commit | 1e8b33328a5407b447ff80953655a47014a6dcb9 (patch) | |
| tree | cb5a5f90712bafe8fb64d3d221fc5213c53f681f /include | |
| parent | 45bce8f3e3436bbe2e03dd2b076abdce79ffabb7 (diff) | |
| download | linux-1e8b33328a5407b447ff80953655a47014a6dcb9.tar.gz linux-1e8b33328a5407b447ff80953655a47014a6dcb9.tar.bz2 linux-1e8b33328a5407b447ff80953655a47014a6dcb9.zip | |
blockdev: remove bd_block_size_semaphore again
This reverts the block-device direct access code to the previous
unlocked code, now that fs/buffer.c no longer needs external locking.
With this, fs/block_dev.c is back to the original version, apart from a
whitespace cleanup that I didn't want to revert.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/fs.h | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index b33cfc97b9ca..44f288e9726d 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -462,8 +462,6 @@ struct block_device { int bd_fsfreeze_count; /* Mutex for freeze */ struct mutex bd_fsfreeze_mutex; - /* A semaphore that prevents I/O while block size is being changed */ - struct percpu_rw_semaphore bd_block_size_semaphore; }; /* @@ -2379,8 +2377,6 @@ extern int generic_segment_checks(const struct iovec *iov, unsigned long *nr_segs, size_t *count, int access_flags); /* fs/block_dev.c */ -extern ssize_t blkdev_aio_read(struct kiocb *iocb, const struct iovec *iov, - unsigned long nr_segs, loff_t pos); extern ssize_t blkdev_aio_write(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t pos); extern int blkdev_fsync(struct file *filp, loff_t start, loff_t end, |