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Otherwise we must export backing-dev.h as well, which doesn't make
any sense.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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This ensures that dirty data gets flushed properly.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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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>
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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>
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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>
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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>
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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>
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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>
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Signed-off-by: Jeff Garzik <jeff@garzik.org>
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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>
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Remove coda_mknod as the code was never used, coda_hasmknod was always 0.
(reported by Adrian Bunk)
Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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The ViceFid structure is really a Coda server datatype and the kernel
really shouldn't have to know its internal structure. Replace all
instances with struct CodaFid with opaque members.
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Both userspace and the kernel are testing only the fsuid part of the
coda_creds credentials structure. Nothing else is really used, so we now
match the code with the actual usage by only passing fsuid around. The
kernel-userspace API is kept compatible (for now).
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Use a global 'epoch' counter to invalidate cached permissions instead of
traversing a racy linked list of all known Coda inodes.
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- Remove unused functions and variables.
- Be a bit more strict with the definition of various types that are
shared between kernel and userspace.
- Included a couple of cleanups from Maximilian Attems and Stephen
Hemminger.
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From: Peter Chubb <peter@chubb.wattle.id.au>
Add two new system calls, statfs64 and fstatfs64. This has been needed
sincew the 64-bit sector_t merge - the current structures will overflow.
- Use a common interface (vfs_statfs) with the rest of the kernel,
- convert to 32-bit at (f)statfs time.
- New field f_frsize gives underlying fragment size for the filesystem.
(Solaris has this, and the Open Group describe it).
- The old statfs syscalls will now return -EOVERFLOW if the device was
too large to be represented inthe old data structures.
The new system calls take a size_t argument, which is the size of the
structure to be filled in (as requested by Ben LaHaise), to `futureproof' the
interface.
Has been reviewed by the arch maintainers and by Ulrich Drepper.
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fs.h only needs the forward-declaration of struct statfs
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The dev_t argument of sys_mknod is passed to vfs_mknod, and is then cast
to int when foo_mknod is called, and is subsequently very often cast
back to dev_t. (For example, minix_mknod() calls minix_set_inode() that
takes a dev_t.)
This is a cleanup that avoids this back-and-forth casting by giving
foo_mknod a prototype with dev_t. In most cases now the dev_t is
transmitted untouched until init_special_inode.
It also makes the two routines hugetlbfs_get_inode() and
shmem_get_inode() static.
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into home.transmeta.com:/home/torvalds/v2.5/linux
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Most of these changes have been tested and used in the 2.4 tree, so this
is mostly a forward port of 2.4 bugfixes.
* C99 initializers
* Added specific initializations instead of assuming that the private
part of the inode is already initialized.
* Remove unused code.
* Moved container file to the struct file private data, this is to
* correct the session semantics model when file updates are fetched from
* the server (old 'sessions' shouldn't see the new container yet).
* Fixed consistency (and occasional oopes) when mmap-ing Coda files.
* Fixing up inode numbers in readdir, old libc5 getcwd was broken.
* Nuked upcall_stats, all of this can easily be maintained in userspace,
and the existing code suffers from overflows in the fixed point
calculations.
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This last patch removes the union, replacing it with s_fs_info.
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- Johannes Erdfelt: USB updates
- David Howells: more rw-sem stuff
- David Miller: network callback cleanups and fixes
- Jan Harkes: make Coda use the proper VFS layer interfaces, so that it can use
"non-traditional-unix" filesystems without inode numbers for backing store.
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