- 04 1月, 2012 4 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
vfs_create() ignores everything outside of 16bit subset of its mode argument; switching it to umode_t is obviously equivalent and it's the only caller of the method Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
vfs_mkdir() gets int, but immediately drops everything that might not fit into umode_t and that's the only caller of ->mkdir()... Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
No need to duplicate them in both callers; make it return ERR_PTR(-ENOMEM) on allocation failure instead of NULL and it'll be able to report rpc_lookup_cred() failures just fine. Callers are much happier that way... Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 05 11月, 2011 1 次提交
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由 Jeff Layton 提交于
commit d953126a changed how nfs_atomic_lookup handles an -EISDIR return from an OPEN call. Prior to that patch, that caused the client to fall back to doing a normal lookup. When that patch went in, the code began returning that error to userspace. The d_revalidate codepath however never had the corresponding change, so it was still possible to end up with a NULL ctx->state pointer after that. That patch caused a regression. When we attempt to open a directory that does not have a cached dentry, that open now errors out with EISDIR. If you attempt the same open with a cached dentry, it will succeed. Fix this by reverting the change in nfs_atomic_lookup and allowing attempts to open directories to fall back to a normal lookup Also, add a NFSv4-specific f_ops->open routine that just returns -ENOTDIR. This should never be called if things are working properly, but if it ever is, then the dprintk may help in debugging. To facilitate this, a new file_operations field is also added to the nfs_rpc_ops struct. Cc: stable@kernel.org Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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- 31 7月, 2011 2 次提交
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由 Bryan Schumaker 提交于
Print out the name of the file that triggers the cookie loop message to make it slightly easier to track down the cause. Signed-off-by: NBryan Schumaker <bjschuma@netapp.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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由 Trond Myklebust 提交于
If the directory contents change, then we have to accept that the file->f_pos value may shrink if we do a 'search-by-cookie'. In that case, we should turn off the loop detection and let the NFS client try to recover. The patch also fixes a second loop detection bug by ensuring that after turning on the ctx->duped flag, we read at least one new cookie into ctx->dir_cookie before attempting to match with ctx->dup_cookie. Reported-by: NPetr Vandrovec <petr@vandrovec.name> Cc: stable@kernel.org [2.6.39+] Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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- 21 7月, 2011 1 次提交
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由 Josef Bacik 提交于
Btrfs needs to be able to control how filemap_write_and_wait_range() is called in fsync to make it less of a painful operation, so push down taking i_mutex and the calling of filemap_write_and_wait() down into the ->fsync() handlers. Some file systems can drop taking the i_mutex altogether it seems, like ext3 and ocfs2. For correctness sake I just pushed everything down in all cases to make sure that we keep the current behavior the same for everybody, and then each individual fs maintainer can make up their mind about what to do from there. Thanks, Acked-by: NJan Kara <jack@suse.cz> Signed-off-by: NJosef Bacik <josef@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 20 7月, 2011 9 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
... it will be set in nd->flag for all cases with non-NULL nd (i.e. when called from do_last()). Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
->create() instances are much happier that way... Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
a) check the right flags in ->create() (LOOKUP_OPEN, not LOOKUP_CREATE) b) default (!LOOKUP_OPEN) open_flags is O_CREAT|O_EXCL|FMODE_READ, not 0 c) lookup_instantiate_filp() should be done only with LOOKUP_OPEN; otherwise we need to issue CLOSE, lest we leak stateid on server. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
just open flags; switched to passing just those and renamed to create_nfs_open_context() Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
just dentry, please... Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
not used by the instances anymore. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
redundant; all callers get it duplicated in mask & MAY_NOT_BLOCK and none of them removes that bit. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
its value depends only on inode and does not change; we might as well store it in ->i_op->check_acl and be done with that. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 30 5月, 2011 1 次提交
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由 Benny Halevy 提交于
Initialize xdr_stream and xdr_buf using an array of page pointers and length of buffer. Signed-off-by: NBenny Halevy <bhalevy@panasas.com>
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- 26 5月, 2011 3 次提交
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由 Sage Weil 提交于
NFS has no problems with lingering references to unlinked directory inodes. CC: Trond Myklebust <Trond.Myklebust@netapp.com> CC: linux-nfs@vger.kernel.org Signed-off-by: NSage Weil <sage@newdream.net> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Sage Weil 提交于
Only a few file systems need this. Start by pushing it down into each rename method (except gfs2 and xfs) so that it can be dealt with on a per-fs basis. Acked-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NSage Weil <sage@newdream.net> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Sage Weil 提交于
Only a few file systems need this. Start by pushing it down into each fs rmdir method (except gfs2 and xfs) so it can be dealt with on a per-fs basis. This does not change behavior for any in-tree file systems. Acked-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NSage Weil <sage@newdream.net> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 25 5月, 2011 1 次提交
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由 Ying Han 提交于
Change each shrinker's API by consolidating the existing parameters into shrink_control struct. This will simplify any further features added w/o touching each file of shrinker. [akpm@linux-foundation.org: fix build] [akpm@linux-foundation.org: fix warning] [kosaki.motohiro@jp.fujitsu.com: fix up new shrinker API] [akpm@linux-foundation.org: fix xfs warning] [akpm@linux-foundation.org: update gfs2] Signed-off-by: NYing Han <yinghan@google.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Minchan Kim <minchan.kim@gmail.com> Acked-by: NPavel Emelyanov <xemul@openvz.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Mel Gorman <mel@csn.ul.ie> Acked-by: NRik van Riel <riel@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Hugh Dickins <hughd@google.com> Cc: Dave Hansen <dave@linux.vnet.ibm.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 25 3月, 2011 1 次提交
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由 Bryan Schumaker 提交于
A later patch will need to perform a lookup using an alternate client with a different security flavor. This patch adds support for doing that on NFS v4. Signed-off-by: NBryan Schumaker <bjschuma@netapp.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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- 24 3月, 2011 3 次提交
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由 Bryan Schumaker 提交于
Some filesystems (such as ext4) can return the same cookie value for multiple files. If we try to start a readdir with one of these cookies, the server will return the first file found with a cookie of the same value. This can cause the client to enter an infinite loop. Signed-off-by: NBryan Schumaker <bjschuma@netapp.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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由 Bryan Schumaker 提交于
nfs_opendir() created a context that held much more information than we need for a readdir. This patch introduces a slimmed-down nfs_open_dir_context that contains only the cookie and the cred used for RPC operations. The new context will eventually be used to help detect readdir loops. Signed-off-by: NBryan Schumaker <bjschuma@netapp.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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由 Trond Myklebust 提交于
If we're doing a search by readdir cookie, we need to ensure that the resulting f_pos is updated. To do so, we need to update the desc->current_index, in the same way that we do in the search by file offset case. Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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- 17 3月, 2011 1 次提交
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由 Al Viro 提交于
part 2: make sure that disconnected roots have corresponding mnt_devname values stashed into them. Have nfs*_get_root() stuff a copy of devname into ->d_fsdata of the found root, provided that it is disconnected. Have ->d_release() free it when dentry goes away. Have the places where NFS uses ->d_fsdata for sillyrename (and that can *never* happen to a disconnected root - dentry will be attached to its parent) free old devname copies if they find those. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 16 1月, 2011 1 次提交
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由 David Howells 提交于
Make NFS use the new d_automount() dentry operation rather than abusing follow_link() on directories. Signed-off-by: NDavid Howells <dhowells@redhat.com> Acked-by: NTrond Myklebust <Trond.Myklebust@netapp.com> Acked-by: NIan Kent <raven@themaw.net> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 14 1月, 2011 2 次提交
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由 Nick Piggin 提交于
Signed-off-by: NNick Piggin <npiggin@kernel.dk>
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由 Trond Myklebust 提交于
Commit c0204fd2 (NFS: Clean up nfs4_proc_create()) broke NFSv3 exclusive open by removing the code that passes the O_EXCL flag down to nfs3_proc_create(). This patch reverts that offending hunk from the original commit. Reported-by: NNick Bowler <nbowler@elliptictech.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@kernel.org [2.6.37] Tested-by: NNick Bowler <nbowler@elliptictech.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 13 1月, 2011 1 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 11 1月, 2011 1 次提交
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由 Trond Myklebust 提交于
vm_map_ram() is not available on NOMMU platforms, and causes trouble on incoherrent architectures such as ARM when we access the page data through both the direct and the virtual mapping. The alternative is to use the direct mapping to access page data for the case when we are not crossing a page boundary, but to copy the data into a linear scratch buffer when we are accessing data that spans page boundaries. Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com> Tested-by: NMarc Kleine-Budde <mkl@pengutronix.de> Cc: stable@kernel.org [2.6.37]
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- 07 1月, 2011 6 次提交
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由 Nick Piggin 提交于
Signed-off-by: NNick Piggin <npiggin@kernel.dk>
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由 Nick Piggin 提交于
Require filesystems be aware of .d_revalidate being called in rcu-walk mode (nd->flags & LOOKUP_RCU). For now do a simple push down, returning -ECHILD from all implementations. Signed-off-by: NNick Piggin <npiggin@kernel.dk>
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由 Nick Piggin 提交于
Reduce some branches and memory accesses in dcache lookup by adding dentry flags to indicate common d_ops are set, rather than having to check them. This saves a pointer memory access (dentry->d_op) in common path lookup situations, and saves another pointer load and branch in cases where we have d_op but not the particular operation. Patched with: git grep -E '[.>]([[:space:]])*d_op([[:space:]])*=' | xargs sed -e 's/\([^\t ]*\)->d_op = \(.*\);/d_set_d_op(\1, \2);/' -e 's/\([^\t ]*\)\.d_op = \(.*\);/d_set_d_op(\&\1, \2);/' -i Signed-off-by: NNick Piggin <npiggin@kernel.dk>
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由 Nick Piggin 提交于
dcache_lock no longer protects anything. remove it. Signed-off-by: NNick Piggin <npiggin@kernel.dk>
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由 Nick Piggin 提交于
Make d_count non-atomic and protect it with d_lock. This allows us to ensure a 0 refcount dentry remains 0 without dcache_lock. It is also fairly natural when we start protecting many other dentry members with d_lock. Signed-off-by: NNick Piggin <npiggin@kernel.dk>
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由 Nick Piggin 提交于
Change d_delete from a dentry deletion notification to a dentry caching advise, more like ->drop_inode. Require it to be constant and idempotent, and not take d_lock. This is how all existing filesystems use the callback anyway. This makes fine grained dentry locking of dput and dentry lru scanning much simpler. Signed-off-by: NNick Piggin <npiggin@kernel.dk>
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- 05 1月, 2011 2 次提交
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由 Aneesh Kumar K.V 提交于
This patch make nfsv4 use the generic xattr handling code to get the nfsv4 acl. This will help us to add richacl support to nfsv4 in later patches Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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由 Aneesh Kumar K.V 提交于
We want to skip VFS applying mode for NFS. So set MS_POSIXACL always and selectively use umask. Ideally we would want to use umask only when we don't have inheritable ACEs set. But NFS currently don't allow to send umask to the server. So this is best what we can do and this is consistent with NFSv3 Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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