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This avoids an indirect call in the VFS for each path component lookup.
Well, at least as long as you own the directory in question, and the ACL
check is unnecessary.
Reviewed-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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BugLink: http://bugs.launchpad.net/ubuntu/+bug/396780
Commit 073aaa1b142461d91f83da66db1184d7c1b1edea "helpers for acl
caching + switch to those" introduced new helper functions for
acl handling but seems to have introduced a regression for jfs as
the acl is released before returning it to the caller, instead of
leaving this for the caller to do.
This causes the acl object to be used after freeing it, leading
to kernel panics in completely different places.
Thanks to Christophe Dumez for reporting and bisecting into this.
Reported-by: Christophe Dumez <dchris@gmail.com>
Tested-by: Christophe Dumez <dchris@gmail.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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helpers: get_cached_acl(inode, type), set_cached_acl(inode, type, acl),
forget_cached_acl(inode, type).
ubifs/xattr.c needed includes reordered, the rest is a plain switchover.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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current->fs->umask is what most of fs_struct users are doing.
Put that into a helper function.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Use lowercase names of quota functions instead of old uppercase ones.
Signed-off-by: Jan Kara <jack@suse.cz>
Acked-by: Dave Kleikamp <shaggy@austin.ibm.com>
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* kill nameidata * argument; map the 3 bits in ->flags anybody cares
about to new MAY_... ones and pass with the mask.
* kill redundant gfs2_iop_permission()
* sanitize ecryptfs_permission()
* fix remaining places where ->permission() instances might barf on new
MAY_... found in mask.
The obvious next target in that direction is permission(9)
folded fix for nfs_permission() breakage from Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Removed trailing spaces & tabs, and spaces preceding tabs.
Also a couple very minor comment cleanups.
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
(cherry picked from f74156539964d7b3d5164fdf8848e6a682f75b97 commit)
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OS/2 doesn't initialize the uid, gid, or unix-style permission bits. The
uid, gid, & umask mount options perform pretty much like those for the fat
file system, overriding what is stored on disk. This is useful for users
sharing the file system with OS/2.
I implemented a little feature so that if you mask the execute bit, it
will be re-enabled on directories when the appropriate read bit is unmasked.
I didn't want to implement an fmask & dmask option.
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
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the conversion was generated via scripts, and the result was validated
automatically via a script as well.
build and boot tested.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
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Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
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This file duplicates <linux/posix_acl_xattr.h>, using slightly different
names.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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kfree() can handle a NULL pointer, don't worry about passing it one.
Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
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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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