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8769e07 Merge tag 'for-linus-v3.10-rc1-2' of git://oss.sgi.com/xfs/xfs
a27bb33 aio: don't include aio.h in sched.h
c8d8566 Merge tag 'for-linus-v3.10-rc1' of git://oss.sgi.com/xfs/xfs
8d71db4 lift sb_start_write/sb_end_write out of ->aio_write()
10b3866 Merge tag 'for-linus-v3.9-rc4' of git://oss.sgi.com/xfs/xfs
e001873 xfs: ensure we capture IO errors correctly
3325bee xfs: fix xfs_iomap_eof_prealloc_initial_size type
83cdadd xfs: fix potential infinite loop in xfs_iomap_prealloc_size()
7f78e03 fs: Limit sys_mount to only request filesystem modules.
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- Log -----------------------------------------------------------------
commit 8769e078a9a2bce13d39c08e0e5a513f5320e1de
Merge: 8cbc95e 7dfbcbe
Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date: Thu May 9 13:06:20 2013 -0700
Merge tag 'for-linus-v3.10-rc1-2' of git://oss.sgi.com/xfs/xfs
Pull xfs update (#2) from Ben Myers:
- add CONFIG_XFS_WARN, a step between zero debugging and
CONFIG_XFS_DEBUG.
- fix attrmulti and attrlist to fall back to vmalloc when kmalloc
fails.
* tag 'for-linus-v3.10-rc1-2' of git://oss.sgi.com/xfs/xfs:
xfs: fallback to vmalloc for large buffers in xfs_compat_attrlist_by_handle
xfs: fallback to vmalloc for large buffers in xfs_attrlist_by_handle
xfs: introduce CONFIG_XFS_WARN
commit a27bb332c04cec8c4afd7912df0dc7890db27560
Author: Kent Overstreet <koverstreet@xxxxxxxxxx>
Date: Tue May 7 16:19:08 2013 -0700
aio: don't include aio.h in sched.h
Faster kernel compiles by way of fewer unnecessary includes.
[akpm@xxxxxxxxxxxxxxxxxxxx: fix fallout]
[akpm@xxxxxxxxxxxxxxxxxxxx: fix build]
Signed-off-by: Kent Overstreet <koverstreet@xxxxxxxxxx>
Cc: Zach Brown <zab@xxxxxxxxxx>
Cc: Felipe Balbi <balbi@xxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Mark Fasheh <mfasheh@xxxxxxxx>
Cc: Joel Becker <jlbec@xxxxxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Cc: Jens Axboe <axboe@xxxxxxxxx>
Cc: Asai Thambi S P <asamymuthupa@xxxxxxxxxx>
Cc: Selvan Mani <smani@xxxxxxxxxx>
Cc: Sam Bradshaw <sbradshaw@xxxxxxxxxx>
Cc: Jeff Moyer <jmoyer@xxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Benjamin LaHaise <bcrl@xxxxxxxxx>
Reviewed-by: "Theodore Ts'o" <tytso@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
commit c8d8566952fda026966784a62f324c8352f77430
Merge: a9586d9 cab09a8
Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date: Thu May 2 14:49:33 2013 -0700
Merge tag 'for-linus-v3.10-rc1' of git://oss.sgi.com/xfs/xfs
Pull xfs update from Ben Myers:
"For 3.10-rc1 we have a number of bug fixes and cleanups and a
currently experimental feature from David Chinner, CRCs protection for
metadata. CRCs are enabled by using mkfs.xfs to create a filesystem
with the feature bits set.
- numerous fixes for speculative preallocation
- don't verify buffers on IO errors
- rename of random32 to prandom32
- refactoring/rearrangement in xfs_bmap.c
- removal of unused m_inode_shrink in struct xfs_mount
- fix error handling of xfs_bufs and readahead
- quota driven preallocation throttling
- fix WARN_ON in xfs_vm_releasepage
- add ratelimited printk for different alert levels
- fix spurious forced shutdowns due to freed Extent Free Intents
- remove some obsolete XLOG_CIL_HARD_SPACE_LIMIT() macros
- remove some obsoleted comments
- (experimental) CRC support for metadata"
* tag 'for-linus-v3.10-rc1' of git://oss.sgi.com/xfs/xfs: (46 commits)
xfs: fix da node magic number mismatches
xfs: Remote attr validation fixes and optimisations
xfs: Teach dquot recovery about CONFIG_XFS_QUOTA
xfs: add metadata CRC documentation
xfs: implement extended feature masks
xfs: add CRC checks to the superblock
xfs: buffer type overruns blf_flags field
xfs: add buffer types to directory and attribute buffers
xfs: add CRC protection to remote attributes
xfs: split remote attribute code out
xfs: add CRCs to attr leaf blocks
xfs: add CRCs to dir2/da node blocks
xfs: shortform directory offsets change for dir3 format
xfs: add CRC checking to dir2 leaf blocks
xfs: add CRC checking to dir2 data blocks
xfs: add CRC checking to dir2 free blocks
xfs: add CRC checks to block format directory blocks
xfs: add CRC checks to remote symlinks
xfs: split out symlink code into it's own file.
xfs: add version 3 inode format with CRCs
...
commit 8d71db4f0890605d44815a2b2da4ca003f1bb142
Author: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Date: Tue Mar 19 21:01:03 2013 -0400
lift sb_start_write/sb_end_write out of ->aio_write()
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
commit 10b38669d64c757cfd927e3820292c580ed70aae
Merge: 547b524 e001873
Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date: Tue Mar 19 15:17:40 2013 -0700
Merge tag 'for-linus-v3.9-rc4' of git://oss.sgi.com/xfs/xfs
Pull XFS fixes from Ben Myers:
- Fix for a potential infinite loop which was introduced in commit
4d559a3bcb73 ("xfs: limit speculative prealloc near ENOSPC
thresholds")
- Fix for the return type of xfs_iomap_eof_prealloc_initial_size from
commit a1e16c26660b ("xfs: limit speculative prealloc size on sparse
files")
- Fix for a failed buffer readahead causing subsequent callers to fail
incorrectly
* tag 'for-linus-v3.9-rc4' of git://oss.sgi.com/xfs/xfs:
xfs: ensure we capture IO errors correctly
xfs: fix xfs_iomap_eof_prealloc_initial_size type
xfs: fix potential infinite loop in xfs_iomap_prealloc_size()
commit e001873853d87674dd5b3cfa2851885023616695
Author: Dave Chinner <dchinner@xxxxxxxxxx>
Date: Tue Mar 12 23:30:34 2013 +1100
xfs: ensure we capture IO errors correctly
Failed buffer readahead can leave the buffer in the cache marked
with an error. Most callers that then issue a subsequent read on the
buffer do not zero the b_error field out, and so we may incorectly
detect an error during IO completion due to the stale error value
left on the buffer.
Avoid this problem by zeroing the error before IO submission. This
ensures that the only IO errors that are detected those captured
from are those captured from bio submission or completion.
Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
Reviewed-by: Mark Tinguely <tinguely@xxxxxxx>
Signed-off-by: Ben Myers <bpm@xxxxxxx>
(cherry picked from commit c163f9a1760229a95d04e37b332de7d5c1c225cd)
commit 3325beed46d8d14d873e94d89ea57ee900dec942
Author: Mark Tinguely <tinguely@xxxxxxx>
Date: Sun Feb 24 13:04:37 2013 -0600
xfs: fix xfs_iomap_eof_prealloc_initial_size type
Fix the return type of xfs_iomap_eof_prealloc_initial_size() to
xfs_fsblock_t to reflect the fact that the return value may be an
unsigned 64 bits if XFS_BIG_BLKNOS is defined.
Signed-off-by: Mark Tinguely <tinguely@xxxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Ben Myers <bpm@xxxxxxx>
(cherry picked from commit e8108cedb1c5d1dc359690d18ca997e97a0061d2)
commit 83cdadd8b0559c93728d065d23ca3485fa567e54
Author: Brian Foster <bfoster@xxxxxxxxxx>
Date: Fri Feb 22 13:32:56 2013 -0500
xfs: fix potential infinite loop in xfs_iomap_prealloc_size()
If freesp == 0, we could end up in an infinite loop while squashing
the preallocation. Break the loop when we've killed the prealloc
entirely.
Signed-off-by: Brian Foster <bfoster@xxxxxxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Ben Myers <bpm@xxxxxxx>
(cherry picked from commit e78c420bfc2608bb5f9a0b9165b1071c1e31166a)
commit 7f78e0351394052e1a6293e175825eb5c7869507
Author: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
Date: Sat Mar 2 19:39:14 2013 -0800
fs: Limit sys_mount to only request filesystem modules.
Modify the request_module to prefix the file system type with "fs-"
and add aliases to all of the filesystems that can be built as modules
to match.
A common practice is to build all of the kernel code and leave code
that is not commonly needed as modules, with the result that many
users are exposed to any bug anywhere in the kernel.
Looking for filesystems with a fs- prefix limits the pool of possible
modules that can be loaded by mount to just filesystems trivially
making things safer with no real cost.
Using aliases means user space can control the policy of which
filesystem modules are auto-loaded by editing /etc/modprobe.d/*.conf
with blacklist and alias directives. Allowing simple, safe,
well understood work-arounds to known problematic software.
This also addresses a rare but unfortunate problem where the filesystem
name is not the same as it's module name and module auto-loading
would not work. While writing this patch I saw a handful of such
cases. The most significant being autofs that lives in the module
autofs4.
This is relevant to user namespaces because we can reach the request
module in get_fs_type() without having any special permissions, and
people get uncomfortable when a user specified string (in this case
the filesystem type) goes all of the way to request_module.
After having looked at this issue I don't think there is any
particular reason to perform any filtering or permission checks beyond
making it clear in the module request that we want a filesystem
module. The common pattern in the kernel is to call request_module()
without regards to the users permissions. In general all a filesystem
module does once loaded is call register_filesystem() and go to sleep.
Which means there is not much attack surface exposed by loading a
filesytem module unless the filesystem is mounted. In a user
namespace filesystems are not mounted unless .fs_flags = FS_USERNS_MOUNT,
which most filesystems do not set today.
Acked-by: Serge Hallyn <serge.hallyn@xxxxxxxxxxxxx>
Acked-by: Kees Cook <keescook@xxxxxxxxxxxx>
Reported-by: Kees Cook <keescook@xxxxxxxxxx>
Signed-off-by: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
-----------------------------------------------------------------------
Summary of changes:
fs/xfs/xfs_aops.c | 1 +
fs/xfs/xfs_file.c | 4 +---
fs/xfs/xfs_super.c | 1 +
3 files changed, 3 insertions(+), 3 deletions(-)
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