- 07 3月, 2012 1 次提交
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由 Masanari Iida 提交于
Signed-off-by: NMasanari Iida <standby24x7@gmail.com> Acked-by: NRandy Dunlap <rdunlap@xenotime.net> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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- 21 2月, 2012 1 次提交
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由 Masanari Iida 提交于
Fix broken URL in documents "freshmeat" to "freecode" in Documentation/filesystems/ramfs-rootfs-initramfs.txt, Documentation/scsi/scsi-generic.txt Documentation/usb/mtouchusb.txt Signed-off-by: NMasanari Iida <standby24x7@gmail.com> Acked-by: NRandy Dunlap <rdunlap@xenotime.net> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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- 13 1月, 2012 2 次提交
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由 Cyrill Gorcunov 提交于
The mm->start_code/end_code, mm->start_data/end_data, mm->start_brk are involved into calculation of program text/data segment sizes (which might be seen in /proc/<pid>/statm) and into brk() call final address. For restore we need to know all these values. While mm->start_code/end_code already present in /proc/$pid/stat, the rest members are not, so this patch brings them in. The restore procedure of these members is addressed in another patch using prctl(). Signed-off-by: NCyrill Gorcunov <gorcunov@openvz.org> Acked-by: NSerge Hallyn <serge.hallyn@canonical.com> Reviewed-by: NKees Cook <keescook@chromium.org> Reviewed-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Tejun Heo <tj@kernel.org> Cc: Andrew Vagin <avagin@openvz.org> Cc: Vasiliy Kulikov <segoon@openwall.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Sage Weil 提交于
Enable/disable use of the dentry dir 'complete' flag via a mount option. This lets the admin control whether ceph uses the dcache to satisfy negative lookups or readdir when it has the entire directory contents in its cache. This is purely a performance optimization; correctness is guaranteed whether it is enabled or not. Reviewed-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NSage Weil <sage@newdream.net>
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- 11 1月, 2012 1 次提交
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由 Vasiliy Kulikov 提交于
Add support for mount options to restrict access to /proc/PID/ directories. The default backward-compatible "relaxed" behaviour is left untouched. The first mount option is called "hidepid" and its value defines how much info about processes we want to be available for non-owners: hidepid=0 (default) means the old behavior - anybody may read all world-readable /proc/PID/* files. hidepid=1 means users may not access any /proc/<pid>/ directories, but their own. Sensitive files like cmdline, sched*, status are now protected against other users. As permission checking done in proc_pid_permission() and files' permissions are left untouched, programs expecting specific files' modes are not confused. hidepid=2 means hidepid=1 plus all /proc/PID/ will be invisible to other users. It doesn't mean that it hides whether a process exists (it can be learned by other means, e.g. by kill -0 $PID), but it hides process' euid and egid. It compicates intruder's task of gathering info about running processes, whether some daemon runs with elevated privileges, whether another user runs some sensitive program, whether other users run any program at all, etc. gid=XXX defines a group that will be able to gather all processes' info (as in hidepid=0 mode). This group should be used instead of putting nonroot user in sudoers file or something. However, untrusted users (like daemons, etc.) which are not supposed to monitor the tasks in the whole system should not be added to the group. hidepid=1 or higher is designed to restrict access to procfs files, which might reveal some sensitive private information like precise keystrokes timings: http://www.openwall.com/lists/oss-security/2011/11/05/3 hidepid=1/2 doesn't break monitoring userspace tools. ps, top, pgrep, and conky gracefully handle EPERM/ENOENT and behave as if the current user is the only user running processes. pstree shows the process subtree which contains "pstree" process. Note: the patch doesn't deal with setuid/setgid issues of keeping preopened descriptors of procfs files (like https://lkml.org/lkml/2011/2/7/368). We rely on that the leaked information like the scheduling counters of setuid apps doesn't threaten anybody's privacy - only the user started the setuid program may read the counters. Signed-off-by: NVasiliy Kulikov <segoon@openwall.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Greg KH <greg@kroah.com> Cc: Theodore Tso <tytso@MIT.EDU> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: James Morris <jmorris@namei.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Hugh Dickins <hughd@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 07 1月, 2012 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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- 05 1月, 2012 1 次提交
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由 Yongqiang Yang 提交于
This patch adds new online resize interface, whose input argument is a 64-bit integer indicating how many blocks there are in the resized fs. In new resize impelmentation, all work like allocating group tables are done by kernel side, so the new resize interface can support flex_bg feature and prepares ground for suppoting resize with features like bigalloc and exclude bitmap. Besides these, user-space tools just passes in the new number of blocks. We delay initializing the bitmaps and inode tables of added groups if possible and add multi groups (a flex groups) each time, so new resize is very fast like mkfs. Signed-off-by: NYongqiang Yang <xiaoqiangnk@gmail.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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- 04 1月, 2012 6 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
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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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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- 30 12月, 2011 1 次提交
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由 Phillip Lougher 提交于
One paragraph was not updated when xattrs were added to Squashfs. Signed-off-by: NPhillip Lougher <phillip@squashfs.org.uk>
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- 01 12月, 2011 1 次提交
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由 Arnd Hannemann 提交于
The location of the btrfs-progs repository has been changed. This patch updates the documentation accordingly. Signed-off-by: NArnd Hannemann <arnd@arndnet.de>
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- 19 11月, 2011 1 次提交
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由 Alessandro Rubini 提交于
Some debugfs file I deal with are mostly blocks of registers, i.e. lines of the form "<name> = 0x<value>". Some files are only registers, some include registers blocks among other material. This patch introduces data structures and functions to deal with both cases. I expect more users of this over time. Signed-off-by: NAlessandro Rubini <rubini@gnudd.com> Acked-by: NGiancarlo Asnaghi <giancarlo.asnaghi@st.com> Cc: Felipe Balbi <balbi@ti.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 08 11月, 2011 1 次提交
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由 Bryan Schumaker 提交于
Signed-off-by: NBryan Schumaker <bjschuma@netapp.com> Signed-off-by: NJ. Bruce Fields <bfields@redhat.com>
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- 05 11月, 2011 2 次提交
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由 Marcos Paulo de Souza 提交于
Removed the reference of Roman Zippel, last maintainer, of orphaned HFS filesystem. Signed-off-by: NMarcos Paulo de Souza <marcos.mage@gmail.com> Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Marcos Paulo de Souza 提交于
Fixes the path to find the source files of the inotify subsystem. Signed-off-by: NMarcos Paulo de Souza <marcos.mage@gmail.com> Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 02 11月, 2011 1 次提交
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由 Sage Weil 提交于
This adds a d_prune dentry operation that is called by the VFS prior to pruning (i.e. unhashing and killing) a hashed dentry from the dcache. Wrap dentry_lru_del() and use the new _prune() helper in the cases where we are about to unhash and kill the dentry. This will be used by Ceph to maintain a flag indicating whether the complete contents of a directory are contained in the dcache, allowing it to satisfy lookups and readdir without addition server communication. Renumber a few DCACHE_* #defines to group DCACHE_OP_PRUNE with the other DCACHE_OP_ bits. Signed-off-by: NSage Weil <sage@newdream.net> Signed-off-by: NChristoph Hellwig <hch@lst.de>
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- 25 10月, 2011 1 次提交
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由 Nicolae Mogoreanu 提交于
9p.txt advertises that maxdata mount option should be used to specify msize, in the code though we use msize option and completely ignore maxdata if passed Signed-off-by: NNicolae Mogoreanu <mogoreanu@gmail.com> Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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- 09 10月, 2011 2 次提交
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由 Lukas Czerner 提交于
For a long time now orlov is the default block allocator in the ext4. It performs better than the old one and no one seems to claim otherwise so we can safely drop it and make oldalloc and orlov mount option deprecated. This is a part of the effort to reduce number of ext4 options hence the test matrix. Signed-off-by: NLukas Czerner <lczerner@redhat.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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由 Theodore Ts'o 提交于
Acl and user_xattr mount options are no longer needed since those features are enabled by default if configured in (seee commit ea663336). We can not easily deprecate mount options itself (since it is probably too early), but we can remove it from documentation first. Signed-off-by: NLukas Czerner <lczerner@redhat.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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- 28 9月, 2011 1 次提交
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由 Paul Bolle 提交于
There are numerous broken references to Documentation files (in other Documentation files, in comments, etc.). These broken references are caused by typo's in the references, and by renames or removals of the Documentation files. Some broken references are simply odd. Fix these broken references, sometimes by dropping the irrelevant text they were part of. Signed-off-by: NPaul Bolle <pebolle@tiscali.nl> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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- 04 9月, 2011 1 次提交
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由 Theodore Ts'o 提交于
If the user explicitly specifies conflicting mount options for delalloc or dioread_nolock and data=journal, fail the mount, instead of printing a warning and continuing (since many user's won't look at dmesg and notice the warning). Also, print a single warning that data=journal implies that delayed allocation is not on by default (since it's not supported), and furthermore that O_DIRECT is not supported. Improve the text in Documentation/filesystems/ext4.txt so this is clear there as well. Similarly, if the dioread_nolock mount option is specified when the file system block size != PAGE_SIZE, fail the mount instead of printing a warning message and ignoring the mount option. Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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- 23 8月, 2011 1 次提交
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由 Bart Van Assche 提交于
Although it is expected nowadays that every new sysfs attribute is documented under Documentation/ABI, this is not yet mentioned in the kernel documentation. This patch adds a note in the sysfs documentation about that requirement. Signed-off-by: NBart Van Assche <bvanassche@acm.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 17 8月, 2011 1 次提交
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由 Lukas Czerner 提交于
For a long time now orlov is the default block allocator in the ext3. It performs better than the old one and no one seems to claim otherwise so we can safely drop it and make oldalloc and orlov mount option deprecated. Signed-off-by: NLukas Czerner <lczerner@redhat.com> Signed-off-by: NJan Kara <jack@suse.cz>
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- 14 8月, 2011 1 次提交
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由 Marcos Souza 提交于
Remove the name of Sergey Kostyliov as maintainer of befs. In the MAINTAINERS file, befs is orphaned. Signed-off-by: NMarcos Souza <marcos.mage@gmail.com> Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 27 7月, 2011 1 次提交
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由 Phillip Lougher 提交于
Following commits a9049376 and 0c1aa9a9 update the d_splice_alias desciption. Signed-off-by: NPhillip Lougher <phillip@squashfs.org.uk> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 26 7月, 2011 1 次提交
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由 Christoph Hellwig 提交于
Replace the ->check_acl method with a ->get_acl method that simply reads an ACL from disk after having a cache miss. This means we can replace the ACL checking boilerplate code with a single implementation in namei.c. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 25 7月, 2011 1 次提交
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由 Wang Sheng-Hui 提交于
In Documentation/filesystems/ext3.txt, the section "useful links" provides two links which link to ibm developerworks articles. While the second one can be redirected to the latest one, the first one http://www.ibm.com/developerworks/library/l-fs7.html fails to be redirected. Update the 2 links to the latest ones. Signed-off-by: NWang Sheng-Hui <shhuiw@gmail.com> Signed-off-by: NJan Kara <jack@suse.cz>
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- 22 7月, 2011 1 次提交
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由 Phillip Lougher 提交于
Signed-off-by: NPhillip Lougher <phillip@squashfs.org.uk>
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- 21 7月, 2011 5 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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由 Josef Bacik 提交于
This just gets us ready to support the SEEK_HOLE and SEEK_DATA flags. Turns out using fiemap in things like cp cause more problems than it solves, so lets try and give userspace an interface that doesn't suck. We need to match solaris here, and the definitions are *o* If /whence/ is SEEK_HOLE, the offset of the start of the next hole greater than or equal to the supplied offset is returned. The definition of a hole is provided near the end of the DESCRIPTION. *o* If /whence/ is SEEK_DATA, the file pointer is set to the start of the next non-hole file region greater than or equal to the supplied offset. So in the generic case the entire file is data and there is a virtual hole at the end. That means we will just return i_size for SEEK_HOLE and will return the same offset for SEEK_DATA. This is how Solaris does it so we have to do it the same way. Thanks, Signed-off-by: NJosef Bacik <josef@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Dave Chinner 提交于
Now that the per-sb shrinker is responsible for shrinking 2 or more caches, increase the batch size to keep econmies of scale for shrinking each cache. Increase the shrinker batch size to 1024 objects. To allow for a large increase in batch size, add a conditional reschedule to prune_icache_sb() so that we don't hold the LRU spin lock for too long. This mirrors the behaviour of the __shrink_dcache_sb(), and allows us to increase the batch size without needing to worry about problems caused by long lock hold times. To ensure that filesystems using the per-sb shrinker callouts don't cause problems, document that the object freeing method must reschedule appropriately inside loops. Signed-off-by: NDave Chinner <dchinner@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Dave Chinner 提交于
Now we have a per-superblock shrinker implementation, we can add a filesystem specific callout to it to allow filesystem internal caches to be shrunk by the superblock shrinker. Rather than perpetuate the multipurpose shrinker callback API (i.e. nr_to_scan == 0 meaning "tell me how many objects freeable in the cache), two operations will be added. The first will return the number of objects that are freeable, the second is the actual shrinker call. Signed-off-by: NDave Chinner <dchinner@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 J. Bruce Fields 提交于
Both the filesystem and the lock manager can associate operations with a lock. Confusingly, one of them (fl_release_private) actually has the same name in both operation structures. It would save some confusion to give the lock-manager ops different names. Signed-off-by: NJ. Bruce Fields <bfields@redhat.com>
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- 20 7月, 2011 3 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
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
not used in the instances anymore. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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