kernel.git/fs/ncpfs/dir.c, branch linux-3.2.y

move d_rcu from overlapping d_child to overlapping d_alias

2015-01-01T01:27:50Z

commit 946e51f2bf37f1656916eb75bd0742ba33983c28 upstream. Signed-off-by: Al Viro [bwh: Backported to 3.2: - Apply name changes in all the different places we use d_alias and d_child - Move the WARN_ON() in __d_free() to d_free() as we don't have dentry_free()] Signed-off-by: Ben Hutchings

ncpfs: fix rmdir returns Device or resource busy

2013-06-29T03:06:44Z

commit 698b8223631472bf982ed570b0812faa61955683 upstream. 1d2ef5901483004d74947bbf78d5146c24038fe7 caused a regression in ncpfs such that directories could no longer be removed. This was because ncp_rmdir checked to see if a dentry could be unhashed before allowing it to be removed. Since 1d2ef5901483004d74947bbf78d5146c24038fe7 introduced a change that incremented dentry->d_count causing it to always be greater than 1 unhash would always fail. Thus causing the error path in ncp_rmdir to always be taken. Removing this error path is safe as unhashing is still accomplished by calls to dput from vfs_rmdir. Signed-off-by: Dave Chiluk Signed-off-by: Petr Vandrovec Signed-off-by: Al Viro Signed-off-by: Ben Hutchings

ncpfs: fix rename over directory with dangling references

2011-05-28T05:02:53Z

ncpfs does not handle references to unlinked directories (or so it would seem given the ncp_rmdir check). Since it is also possible to rename over an empty directory, perform the same check here. CC: Petr Vandrovec CC: linux-kernel@vger.kernel.org Signed-off-by: Sage Weil Signed-off-by: Al Viro

ncpfs: document dentry_unhash usage

2011-05-28T05:02:53Z

ncpfs returns EBUSY if there are any references to the directory. The dentry_unhash call only unhashes the dentry if there are no references. CC: Petr Vandrovec CC: linux-kernel@vger.kernel.org Signed-off-by: Sage Weil Signed-off-by: Al Viro

vfs: push dentry_unhash on rename_dir into file systems

2011-05-26T11:26:48Z

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: Christoph Hellwig Signed-off-by: Sage Weil Signed-off-by: Al Viro

vfs: push dentry_unhash on rmdir into file systems

2011-05-26T11:26:47Z

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: Christoph Hellwig Signed-off-by: Sage Weil Signed-off-by: Al Viro

move internal-only parts of ncpfs headers to fs/ncpfs

2011-01-13T01:03:43Z

Signed-off-by: Al Viro

switch ncpfs

2011-01-13T01:03:43Z

merge dentry_operations for root and non-root Signed-off-by: Al Viro

fs: rcu-walk aware d_revalidate method

2011-01-07T06:50:29Z

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: Nick Piggin

fs: dcache reduce branches in lookup path

2011-01-07T06:50:28Z

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: Nick Piggin