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Author SHA1 Message Date
Aneesh Kumar K.V 23b08e97f2 fs/9p: Workaround vfs rename rehash bug 
This is similar to what ceph, ocfs2 and nfs does
http://kerneltrap.org/mailarchive/linux-fsdevel/2008/4/18/1498534

May be we should get vfs fixed

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:41 -05:00
Aneesh Kumar K.V d28c61f0e0 fs/9p: Mark directory inode invalid for many directory inode operations 
One successfull directory operation we would have changed directory
inode attribute. So mark them invalid

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:41 -05:00
Aneesh Kumar K.V 823fcfd422 fs/9p: Add . and .. dentry revalidation flag 
We need to revalidate . and .. entries also

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:41 -05:00
Aneesh Kumar K.V 3bc86de317 fs/9p: mark inode attribute invalid on rename, unlink and setattr 
rename, unlink and setattr can result in update of inode attribute.
So mark the cached copy invalid

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:41 -05:00
Aneesh Kumar K.V b3cbea03b4 fs/9p: Add support for marking inode attribute invalid 
With cached mode some of the file system operation result
in updating inode attributes (ctime). Add support for
marking inode attribute invalid in such cases so that
we fetch the updated inode attribute on dentry revalidation.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:40 -05:00
Aneesh Kumar K.V 0e432703aa fs/9p: Initialize root inode number for dotl 
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:40 -05:00
Aneesh Kumar K.V b271ec47bc fs/9p: Update link count correctly on different file system operations 
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:40 -05:00
Aneesh Kumar K.V edd73cf544 fs/9p: Add drop_inode 9p callback 
We want to immediately drop the inode in non cached mode

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:40 -05:00
Aneesh Kumar K.V e959b54901 fs/9p: Add direct IO support in cached mode 
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:40 -05:00
Aneesh Kumar K.V fa6ea16160 fs/9p: Fix inode i_size update in file_write 
Only update inode i_size when we write towards end of file.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:40 -05:00
Aneesh Kumar K.V 6b365604ca fs/9p: set default readahead pages in cached mode 
We want to enable readahead in cached mode

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:39 -05:00
Aneesh Kumar K.V 6b39f6d22f fs/9p: Move writeback fid to v9fs_inode 
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:39 -05:00
Aneesh Kumar K.V a78ce05d5d fs/9p: Add v9fs_inode 
Switch to the fscache code to v9fs_inode. We will later use
v9fs_inode in cache=loose mode to track the inode cache
validity timeout. Ie if we find an inode in cache older
that a specific jiffie range we will consider it stale

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:39 -05:00
Aneesh Kumar K.V a12119087b fs/9p: Don't set stat.st_blocks based on nrpages 
simple_getattr does set stat.st_blocks to a value
derived from nrpages. That is not correct with 9p

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:39 -05:00
Aneesh Kumar K.V 5ffc0cb308 fs/9p: Add inode hashing 
We didn't add the inode to inode hash in 9p. We need to do that
to get sync to work, otherwise __mark_inode_dirty will not
add the inode to super block's dirty list.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:39 -05:00
Aneesh Kumar K.V 62d810b424 fs/9p: We need not writeback dirty pages during close 
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:38 -05:00
Aneesh Kumar K.V 00ea2df43e fs/9p: Implement syncfs call back for 9Pfs 
FIXME!! what about dotu ?

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:38 -05:00
Aneesh Kumar K.V c0aa4caf4c net/9p: Implement syncfs 9P operation 
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:38 -05:00
Aneesh Kumar K.V db5841d4a5 fs/9p: Mark file system with MS_SYNCHRONOUS only if it is not cached mode 
We should not mark file system synchronous if mounted cache=* option

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:38 -05:00
Aneesh Kumar K.V a950a65264 fs/9p: Clarify cached dentry delete operation 
Update the comment to indicate that we don't want to cache
negative dentries.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:38 -05:00
Aneesh Kumar K.V 7263cebed9 fs/9p: Add buffered write support for v9fs. 
We can now support writeable mmaps.
Based on the original patch from Badari Pulavarty <pbadari@us.ibm.com>

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:37 -05:00
Aneesh Kumar K.V 3cf387d780 fs/9p: Add fid to inode in cached mode 
The fid attached to inode will be opened O_RDWR mode and is used
for dirty page writeback only.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:37 -05:00
Aneesh Kumar K.V 17311779ac fs/9p: Add read write helper function 
We add read write helper function here which will
be used later by the mmap patch

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:37 -05:00
Aneesh Kumar K.V 2efda7998b fs/9p: [fscache] wait for page write in cached mode 
We need to call fscache_wait_on_page_write in launder_page
for fscache

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:37 -05:00
Aneesh Kumar K.V 20656a49ef fs/9p: increment inode->i_count in cached mode. 
We need to ihold even in cached mode

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
 2011-03-15 09:57:36 -05:00