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* Coda: replace BKL with mutexYoshihisa Abe2010-10-251-0/+2
| | | | | | | | | | Replace the BKL with a mutex to protect the venus_comm structure which binds the mountpoint with the character device and holds the upcall queues. Signed-off-by: Yoshihisa Abe <yoshiabe@cs.cmu.edu> Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Coda: push BKL regions into coda_upcall()Yoshihisa Abe2010-10-251-1/+1
| | | | | | | | | | | Now that shared inode state is locked using the cii->c_lock, the BKL is only used to protect the upcall queues used to communicate with the userspace cache manager. The remaining state is all local and we can push the lock further down into coda_upcall(). Signed-off-by: Yoshihisa Abe <yoshiabe@cs.cmu.edu> Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* coda: fixup clash with block layer REQ_* definesJens Axboe2010-08-071-4/+4
| | | | | | | CODA should not be using defines in the global name space of that nature, prefix them with CODA_. Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* coda: move backing-dev.h kernel include inside __KERNEL__Jens Axboe2010-04-281-1/+2
| | | | | | | Otherwise we must export backing-dev.h as well, which doesn't make any sense. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* coda: add bdi backing to mount sessionJens Axboe2010-04-221-0/+2
| | | | | | This ensures that dirty data gets flushed properly. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* headers_check fix cleanup: linux/coda_psdev.hJaswinder Singh Rajput2009-02-031-1/+1
| | | | | | | | | These are only for kernel internals as pointed by Arnd Bergmann: struct kstatfs struct venus_comm coda_vcp() Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
* headers_check fix: linux/coda_psdev.hJaswinder Singh Rajput2009-02-021-8/+7
| | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/coda_psdev.h:90: extern's make no sense in userspace Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
* coda: remove CODA_STORE/CODA_RELEASE upcallsJan Harkes2007-07-211-3/+0
| | | | | | | | | | | | | | | | | | | | | | | This is an variation on the patch sent by Christoph Hellwig which kills file_count abuse by the Coda kernel module by moving the coda_flush functionality into coda_release. However part of reason we were using the coda_flush callback was to allow Coda to pass errors that occur during writeback from the userspace cache manager back to close(). As Al Viro explained on linux-fsdevel, it is impossible to guarantee that such errors can in fact be returned back to the caller. There are many cases where the last reference to a file is not released by the close system call and it is also impossible to pick some close as a 'last-close' and delay it until all other references have been destroyed. The CODA_STORE/CODA_RELEASE upcall combination is clearly a broken design, and it is better to remove it completely. Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu> Cc: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@ftp.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* coda: remove statistics counters from /proc/fs/codaJan Harkes2007-07-191-2/+0
| | | | | | | | Similar information can easily be obtained with strace -c. Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* coda: remove struct coda_sb_infoJan Harkes2007-07-191-7/+2
| | | | | | | | | The sb_info structure only contains a single pointer to the character device, there is no need for the added indirection. Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* coda: block signals during upcall processingJan Harkes2007-07-191-1/+0
| | | | | | | | | | We ignore signals for about 30 seconds to give userspace a chance to see the upcall. As we did not block signals we ended up in a busy loop for the remainder of the period when a signal is received. Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Move several *_SUPER_MAGIC symbols to include/linux/magic.h.Jeff Garzik2006-09-241-2/+2
| | | | Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] VFS: Permit filesystem to perform statfs with a known root dentryDavid Howells2006-06-231-1/+1
| | | | | | | | | | | | | | | | | | | | | Give the statfs superblock operation a dentry pointer rather than a superblock pointer. This complements the get_sb() patch. That reduced the significance of sb->s_root, allowing NFS to place a fake root there. However, NFS does require a dentry to use as a target for the statfs operation. This permits the root in the vfsmount to be used instead. linux/mount.h has been added where necessary to make allyesconfig build successfully. Interest has also been expressed for use with the FUSE and XFS filesystems. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Nathan Scott <nathans@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+103
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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