- 20 7月, 2011 2 次提交
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由 Al Viro 提交于
not used in the instances anymore. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 15 5月, 2011 1 次提交
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由 Daniel J Blueman 提交于
If posix_acl_from_xattr() returns an error code, a negative address is dereferenced causing an oops; fix by checking for error code first. Signed-off-by: NDaniel J Blueman <daniel.blueman@gmail.com> Reviewed-by: NJosef Bacik <josef@redhat.com> Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 02 5月, 2011 1 次提交
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由 David Sterba 提交于
use IS_ERR_OR_NULL when possible, done by this coccinelle script: @ match @ identifier id; @@ ( - BUG_ON(IS_ERR(id) || !id); + BUG_ON(IS_ERR_OR_NULL(id)); | - IS_ERR(id) || !id + IS_ERR_OR_NULL(id) | - !id || IS_ERR(id) + IS_ERR_OR_NULL(id) ) Signed-off-by: NDavid Sterba <dsterba@suse.cz>
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- 13 4月, 2011 1 次提交
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由 Miao Xie 提交于
Call posix_acl_valid() to check if an acl is valid or not. Signed-off-by: NMiao Xie <miaox@cn.fujitsu.com> Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com>
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- 24 3月, 2011 1 次提交
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由 Serge E. Hallyn 提交于
And give it a kernel-doc comment. [akpm@linux-foundation.org: btrfs changed in linux-next] Signed-off-by: NSerge E. Hallyn <serge.hallyn@canonical.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Daniel Lezcano <daniel.lezcano@free.fr> Acked-by: NDavid Howells <dhowells@redhat.com> Cc: James Morris <jmorris@namei.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 27 1月, 2011 1 次提交
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由 Miao Xie 提交于
Steps to reproduce: # mkfs.btrfs /dev/sda2 # mount /dev/sda2 /mnt # touch /mnt/file0 # setfacl -m 'u:root:x,g::x,o::x' /mnt/file0 # umount /mnt # mount /dev/sda2 -o noacl /mnt # getfacl /mnt/file0 ... user::rw- user:root:--x group::--x mask::--x other::--x The output should be: user::rw- group::--x other::--x Signed-off-by: NMiao Xie <miaox@cn.fujitsu.com> Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com>
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- 17 1月, 2011 1 次提交
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由 Jesper Juhl 提交于
It seems to me that we leak the memory allocated to 'value' in btrfs_get_acl() if the call to posix_acl_from_xattr() fails. Here's a patch that attempts to correct that problem. Signed-off-by: NJesper Juhl <jj@chaosbits.net> Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 07 1月, 2011 2 次提交
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由 Nick Piggin 提交于
This simple implementation just checks for no ACLs on the inode, and if so, then the rcu-walk may proceed, otherwise fail it. Signed-off-by: NNick Piggin <npiggin@kernel.dk>
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由 Nick Piggin 提交于
Signed-off-by: NNick Piggin <npiggin@kernel.dk>
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- 12 6月, 2010 3 次提交
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由 Dan Carpenter 提交于
posix_acl_from_xattr() returns both ERR_PTRs and null, but it's OK to pass null values to set_cached_acl() Signed-off-by: NDan Carpenter <error27@gmail.com> Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Shi Weihua 提交于
when used Posix File System Test Suite(pjd-fstest) to test btrfs, some cases about setfacl failed when noacl mount option used. I simplified used commands in pjd-fstest, and the following steps can reproduce it. ------------------------ # cd btrfs-part/ # mkdir aaa # setfacl -m m::rw aaa <- successed, but not expected by pjd-fstest. ------------------------ I checked ext3, a warning message occured, like as: setfacl: aaa/: Operation not supported Certainly, it's expected by pjd-fstest. So, i compared acl.c of btrfs and ext3. Based on that, a patch created. Fortunately, it works. Signed-off-by: NShi Weihua <shiwh@cn.fujitsu.com> Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Shi Weihua 提交于
On btrfs, do the following ------------------ # su user1 # cd btrfs-part/ # touch aaa # getfacl aaa # file: aaa # owner: user1 # group: user1 user::rw- group::rw- other::r-- # su user2 # cd btrfs-part/ # setfacl -m u::rwx aaa # getfacl aaa # file: aaa # owner: user1 # group: user1 user::rwx <- successed to setfacl group::rw- other::r-- ------------------ but we should prohibit it that user2 changing user1's acl. In fact, on ext3 and other fs, a message occurs: setfacl: aaa: Operation not permitted This patch fixed it. Signed-off-by: NShi Weihua <shiwh@cn.fujitsu.com> Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 22 5月, 2010 1 次提交
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由 Stephen Hemminger 提交于
Signed-off-by: NStephen Hemminger <shemminger@vyatta.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 30 3月, 2010 1 次提交
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由 Tejun Heo 提交于
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: NTejun Heo <tj@kernel.org> Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
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- 29 1月, 2010 1 次提交
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由 Yang Hongyang 提交于
In btrfs_init_acl() cloned acl is not released Signed-off-by: NYang Hongyang <yanghy@cn.fujitsu.com> Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 18 1月, 2010 1 次提交
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由 Chris Mason 提交于
It is legal for btrfs_set_acl to be sent a NULL acl. This makes sure we don't dereference it. A similar patch was sent by Johannes Hirte <johannes.hirte@fem.tu-ilmenau.de> Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 18 12月, 2009 1 次提交
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由 Yan, Zheng 提交于
Pass transaction handle down to security and ACL initialization functions, so we can avoid starting nested transactions Signed-off-by: NYan Zheng <zheng.yan@oracle.com> Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 17 12月, 2009 1 次提交
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由 Christoph Hellwig 提交于
Add a flags argument to struct xattr_handler and pass it to all xattr handler methods. This allows using the same methods for multiple handlers, e.g. for the ACL methods which perform exactly the same action for the access and default ACLs, just using a different underlying attribute. With a little more groundwork it'll also allow sharing the methods for the regular user/trusted/secure handlers in extN, ocfs2 and jffs2 like it's already done for xfs in this patch. Also change the inode argument to the handlers to a dentry to allow using the handlers mechnism for filesystems that require it later, e.g. cifs. [with GFS2 bits updated by Steven Whitehouse <swhiteho@redhat.com>] Signed-off-by: NChristoph Hellwig <hch@lst.de> Reviewed-by: NJames Morris <jmorris@namei.org> Acked-by: NJoel Becker <joel.becker@oracle.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 14 10月, 2009 1 次提交
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由 Chris Mason 提交于
The btrfs acl code was #ifdefing for a define that didn't exist. This correctly matches it to the values used by the Kconfig file. Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 30 9月, 2009 1 次提交
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由 Chris Ball 提交于
We've already defined CONFIG_BTRFS_POSIX_ACL in Kconfig, but we're currently not using it and are testing CONFIG_FS_POSIX_ACL instead. CONFIG_FS_POSIX_ACL states "Never use this symbol for ifdefs". Signed-off-by: NChris Ball <cjb@laptop.org> Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 24 6月, 2009 2 次提交
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由 Al Viro 提交于
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: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 10 6月, 2009 1 次提交
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由 Al Viro 提交于
... otherwise generic_permission() will allow *anything* for all files you don't own and that have some group permissions. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 28 4月, 2009 1 次提交
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由 Chris Mason 提交于
Linus noticed the btrfs code to cache acls wasn't properly caching a NULL acl when the inode didn't have any acls. This meant the common case of no acls resulted in expensive btree searches every time the kernel checked permissions (which is quite often). This is a modified version of Linus' original patch: Properly set initial acl fields to BTRFS_ACL_NOT_CACHED in the inode. This forces an acl lookup when permission checks are done. Fix btrfs_get_acl to avoid lookups and locking when the inode acls fields are set to null. Fix btrfs_get_acl to use the right return value from __btrfs_getxattr when deciding to cache a NULL acl. It was storing a NULL acl when __btrfs_getxattr return -ENOENT, but __btrfs_getxattr was actually returning -ENODATA for this case. Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 01 4月, 2009 1 次提交
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由 Al Viro 提交于
current->fs->umask is what most of fs_struct users are doing. Put that into a helper function. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 06 1月, 2009 1 次提交
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由 Chris Mason 提交于
There were many, most are fixed now. struct-funcs.c generates some warnings but these are bogus. Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 25 9月, 2008 9 次提交
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由 Christoph Hellwig 提交于
btrfs actually stores the whole xattr name, including the prefix ondisk, so using the generic resolver that strips off the prefix is not very helpful. Instead do the real ondisk xattrs manually and only use the generic resolver for synthetic xattrs like ACLs. (Sorry Josef for guiding you towards the wrong direction here intially) Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Christoph Hellwig 提交于
The ->list handler is really not useful at all, because we always call btrfs_xattr_generic_list anyway. After this is done find_btrfs_xattr_handler becomes unused, and it becomes obvious that the temporary name buffer allocation isn't needed but we can directly copy into the supplied buffer. Tested with various getfattr -d calls on varying xattr lists. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Josef Bacik 提交于
This patch makes btrfs so it will compile properly when acls are disabled. I tested this and it worked with CONFIG_FS_POSIX_ACL off and on. Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Josef Bacik 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Yan 提交于
This patch fixes compile error on kernel-2.6.22 Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Yan 提交于
ACLs are stored but not used for permission checks (yet) Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Josef Bacik 提交于
There was a slight problem with ACL's returning EINVAL when you tried to set an ACL. This isn't correct, we should be returning EOPNOTSUPP, so I did a very ugly thing and just commented everybody out and made them return EOPNOTSUPP. This is only temporary, I'm going back to implement ACL's, but Chris wants to push out a release so this will suffice for now. Also Yan suggested setting reada to -1 in the delete case to enable backwards readahead, and in the listxattr case I moved path->reada = 2; to after the if (!path) check so we can avoid a possible null dereference. Thank you, Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Josef Bacik 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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