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* Merge branch 'for-linus' of ↵Linus Torvalds2010-08-119-115/+180
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: isofs: Fix lseek() to position beyond 4 GB vfs: remove unused MNT_STRICTATIME vfs: show unreachable paths in getcwd and proc vfs: only add " (deleted)" where necessary vfs: add prepend_path() helper vfs: __d_path: dont prepend the name of the root dentry ia64: perfmon: add d_dname method vfs: add helpers to get root and pwd cachefiles: use path_get instead of lone dget fs/sysv/super.c: add support for non-PDP11 v7 filesystems V7: Adjust sanity checks for some volumes Add v7 alias v9fs: fixup for inode_setattr being removed Manual merge to take Al's version of the fs/sysv/super.c file: it merged cleanly, but Al had removed an unnecessary header include, so his side was better.
| * isofs: Fix lseek() to position beyond 4 GBJan Andres2010-08-111-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | isofs supports files larger than 4 GB by using multi-extent files. However an lseek() to a position beyond 4 GB in such a file will fail with EINVAL, because s_maxbytes in the isofs superblock is initialized to 2^32-1, and generic_file_llseek() checks against that value. I therefore suggest increasing the value of s_maxbytes to have full support for large files in isofs. With multi-extent files, file size is only limited by the maximum size of the file system (8 TB), so this seems a reasonable value for s_maxbytes. Signed-off-by: Jan Andres <jandres@gmx.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * vfs: remove unused MNT_STRICTATIMEMiklos Szeredi2010-08-111-1/+0
| | | | | | | | | | | | | | | | | | Commit d0adde574b8487ef30f69e2d08bba769e4be513f added MNT_STRICTATIME but it isn't actually used (MS_STRICTATIME clears MNT_RELATIME and MNT_NOATIME rather than setting any mount flag). Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * vfs: show unreachable paths in getcwd and procMiklos Szeredi2010-08-112-5/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prepend "(unreachable)" to path strings if the path is not reachable from the current root. Two places updated are - the return string from getcwd() - and symlinks under /proc/$PID. Other uses of d_path() are left unchanged (we know that some old software crashes if /proc/mounts is changed). Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * vfs: only add " (deleted)" where necessaryMiklos Szeredi2010-08-111-10/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | __d_path() has 4 callers: d_path() sys_getcwd() seq_path_root() tomoyo_realpath_from_path2() Of these the only one which needs the " (deleted)" ending is d_path(). sys_getcwd() checks for existence before calling __d_path(). seq_path_root() is used to show the mountpoint path in /proc/PID/mountinfo, which is always a positive. And tomoyo doesn't want the deleted ending. Create a helper "path_with_deleted()" as subsequent patches will need this in multiple places. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * vfs: add prepend_path() helperMiklos Szeredi2010-08-111-36/+58
| | | | | | | | | | | | | | | | | | | | | | | | Split off prepend_path() from __d_path(). This new helper takes an end-of-buffer pointer and buffer-length pointer just like the other prepend_* functions. Move the " (deleted)" postfix out to __d_path(). This patch doesn't change any functionality but paves the way for the following patches. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * vfs: __d_path: dont prepend the name of the root dentryMiklos Szeredi2010-08-111-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the old times pseudo-filesystems set the name of theroot dentry to some prefix like "pipe:" and the name of the child dentry to "[123]" and relied on a hack in __d_path() to replace the preceding slash with the root's name to get "pipe:[123]". Then the d_dname() dentry operation was introduced which solved the same problem without having to pre-fill the name in each dentry. Currently the following pseudo filesystems exist in the kernel: perfmon mtd anon_inode bdev pipe socket Of these only perfmon, anon_inode, pipe and socket create sub-dentries, all of which have now been switched to using d_dname(). bdev and mtd only create inodes. This means that now the hack to overwrite the slash can be removed, so for unreachable paths (e.g. within a detached mount) the path string won't be polluted with garbage. For these cases a subsequent patch will add a prefix, indicating that the path is unreachable. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * vfs: add helpers to get root and pwdMiklos Szeredi2010-08-116-55/+20
| | | | | | | | | | | | | | | | | | | | | | | | Add three helpers that retrieve a refcounted copy of the root and cwd from the supplied fs_struct. get_fs_root() get_fs_pwd() get_fs_root_and_pwd() Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * cachefiles: use path_get instead of lone dgetMiklos Szeredi2010-08-111-12/+14
| | | | | | | | | | | | | | | | | | Dentry references should not be acquired without a corresponding vfsmount ref. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * fs/sysv/super.c: add support for non-PDP11 v7 filesystemsLubomir Rintel2010-08-111-24/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds byte order autodetection (of PDP-11 and LE filesystems). No attempt is made to detect big-endian filesystems -- were there any? Tested with PDP-11 v7 filesystems and PC-IX maintenance floppy. [akpm@linux-foundation.org: coding-style fixes] [AV: parser.h inclusion was a rudiment of discarded stuff] Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Cc: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * V7: Adjust sanity checks for some volumesLubomir Rintel2010-08-111-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | Newly mkfs-ed filesystems from Seventh Edition have last modification time set to zero, but are otherwise perfectly valid. Also, tighten up other sanity checks to filter out most filesystems with different bytesex than we're using. Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * Add v7 aliasLubomir Rintel2010-08-111-0/+1
| | | | | | | | | | | | | | | | So that the module gets autoloaded when a v7 filesystem is mounted. Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * v9fs: fixup for inode_setattr being removedStephen Rothwell2010-08-111-3/+12
| | | | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linusLinus Torvalds2010-08-118-20/+180
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus: Squashfs: fix checkpatch.pl warnings Squashfs: fix filename typo Squashfs: update Kconfig and documentation for LZO Squashfs: fix block size use in LZO decompressor Squashfs: Add LZO compression support squashfs: fix filename in header comment Squashfs: Make XATTR config name consistent with other file systems squashfs: fix compiler inline warning
| * | Squashfs: fix checkpatch.pl warningsPhillip Lougher2010-08-091-10/+10
| | | | | | | | | | | | | | | | | | Checkpatch.pl in 2.6.34 added a check for spaces between tabs. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
| * | Squashfs: fix filename typoPhillip Lougher2010-08-061-1/+1
| | | | | | | | | | | | Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
| * | Squashfs: update Kconfig and documentation for LZOPhillip Lougher2010-08-061-4/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update compression types supported and add some help text for the LZO Kconfig option. Also add missing "default n" line and make some trivial whitespace cleanups too. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
| * | Squashfs: fix block size use in LZO decompressorPhillip Lougher2010-08-051-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sizing the buffer using block size alone is incorrect leading to a potential buffer over-run on 4K block size file systems (because the metadata block size is always 8K). Srclength is set to the maximum expected size of the decompressed block and it is block_size or 8K depending on whether a data or metadata block is being decompressed. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
| * | Squashfs: Add LZO compression supportChan Jeong2010-08-055-1/+149
| | | | | | | | | | | | | | | Signed-off-by: Chan Jeong <chan.jeong@lge.com> Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
| * | squashfs: fix filename in header commentPhillip Lougher2010-05-311-1/+1
| | | | | | | | | | | | Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
| * | Squashfs: Make XATTR config name consistent with other file systemsPhillip Lougher2010-05-313-3/+3
| | | | | | | | | | | | | | | Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
| * | squashfs: fix compiler inline warningPhillip Lougher2010-05-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Fix compiler warning where inline conflicts with non-inline prototype. Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
* | | Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osdLinus Torvalds2010-08-114-52/+31
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git.open-osd.org/linux-open-osd: exofs: Fix groups code when num_devices is not divisible by group_width exofs: Remove useless optimization exofs: exofs_file_fsync and exofs_file_flush correctness exofs: Remove superfluous dependency on buffer_head and writeback
| * | | exofs: Fix groups code when num_devices is not divisible by group_widthBoaz Harrosh2010-08-041-17/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a bug when num_devices is not divisible by group_width * mirrors. We would not return to the proper device and offset when looping on to the next group. The fix makes code simpler actually. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
| * | | exofs: Remove useless optimizationBoaz Harrosh2010-08-041-15/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We used to compact all used devices in an IO to the beginning of the device array in an io_state. And keep a last device used so in later loops we don't iterate on all device slots. This does not prevent us from checking if slots are empty since in reads we only read from a single mirror and jump to the next mirror-set. This optimization is marginal, and needlessly complicates the code. Specially when we will later want to support raid/456 with same abstract code. So remove the distinction between "dev" and "comp". Only "dev" is used both as the device used and as the index (component) in the device array. [Note that now the io_state->dev member is redundant but I keep it because I might want to optimize by only IOing a single group, though keeping a group_width*mirrors devices in io_state, we now keep num-devices in each io_state] Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
| * | | exofs: exofs_file_fsync and exofs_file_flush correctnessBoaz Harrosh2010-08-041-12/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As per Christoph advise: no need to call filemap_write_and_wait(). In exofs all metadata is at the inode so just writing the inode is all is needed. ->fsync implies this must be done synchronously. But now exofs_file_fsync can not be used by exofs_file_flush. vfs_fsync() should do that job correctly. FIXME: remove the sb_sync and fix that sb_update better. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
| * | | exofs: Remove superfluous dependency on buffer_head and writebackBoaz Harrosh2010-08-042-8/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | exofs_releasepage && exofs_invalidatepage are never called. Leave the WARN_ONs but remove any code. Remove the cleanup other stale #includes. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
* | | | Merge branch 'for-linus' of ↵Linus Torvalds2010-08-1139-410/+1162
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (39 commits) ceph: generalize mon requests, add pool op support ceph: only queue async writeback on cap revocation if there is dirty data ceph: do not ignore osd_idle_ttl mount option ceph: constify dentry_operations ceph: whitespace cleanup ceph: add flock/fcntl lock support ceph: define on-wire types, constants for file locking support ceph: add CEPH_FEATURE_FLOCK to the supported feature bits ceph: support v2 reconnect encoding ceph: support v2 client_caps encoding ceph: move AES iv definition to shared header ceph: fix decoding of pool snap info ceph: make ->sync_fs not wait if wait==0 ceph: warn on missing snap realm ceph: print useful error message when crush rule not found ceph: use %pU to print uuid (fsid) ceph: sync header defs with server code ceph: clean up header guards ceph: strip misleading/obsolete version, feature info ceph: specify supported features in super.h ...
| * | | | ceph: generalize mon requests, add pool op supportYehuda Sadeh2010-08-102-17/+158
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Generalize the current statfs synchronous requests, and support pool_ops. Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: only queue async writeback on cap revocation if there is dirty dataSage Weil2010-08-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Normally, if the Fb cap bit is being revoked, we queue an async writeback. If there is no dirty data but we still hold the cap, this leaves the client sitting around doing nothing until the cap timeouts expire and the cap is released on its own (as it would have been without the revocation). Instead, only queue writeback if the bit is actually used (i.e., we have dirty data). If not, we can reply to the revocation immediately. Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: do not ignore osd_idle_ttl mount optionSage Weil2010-08-031-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Actually apply the mount option to the mount_args struct. Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: constify dentry_operationsSage Weil2010-08-032-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This makes checkpatch happy. Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: whitespace cleanupSage Weil2010-08-037-24/+31
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: add flock/fcntl lock supportGreg Farnum2010-08-035-2/+284
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement flock inode operation to support advisory file locking. All lock/unlock operations are synchronous with the MDS. Lock state is sent when reconnecting to a recovering MDS to restore the shared lock state. Signed-off-by: Greg Farnum <gregf@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: define on-wire types, constants for file locking supportGreg Farnum2010-08-032-2/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Define the MDS operations and data types for doing file advisory locking with the MDS. Signed-off-by: Greg Farnum <gregf@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: add CEPH_FEATURE_FLOCK to the supported feature bitsGreg Farnum2010-08-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This informs the server that we will accept v2 client_caps format and v2 client_reconnect format messages. Signed-off-by: Greg Farnum <gregf@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: support v2 reconnect encodingSage Weil2010-08-032-13/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Encode either old or v2 encoding of client_reconnect message, depending on whether the peer has the FLOCK feature bit. Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: support v2 client_caps encodingSage Weil2010-08-031-2/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for v2 encoding of MClientCaps, which includes a flock blob. Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: move AES iv definition to shared headerSage Weil2010-08-032-1/+3
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: fix decoding of pool snap infoSage Weil2010-08-021-4/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The pool info contains a vector for snap_info_t, not snap ids. This fixes the broken decoding, which would declare teh update corrupt when a pool snapshot was created. Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: make ->sync_fs not wait if wait==0Sage Weil2010-08-021-4/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ->sync_fs() super op only needs to wait if wait is true. Otherwise, just get some dirty cap writeback started. Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: warn on missing snap realmSage Weil2010-08-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Well, this Shouldn't Happen, so it would be helpful to know the caller when it does. Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: print useful error message when crush rule not foundSage Weil2010-08-021-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Include the crush_ruleset in the error message. Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: use %pU to print uuid (fsid)Sage Weil2010-08-023-15/+8
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: sync header defs with server codeSage Weil2010-08-023-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Define ROLLBACK op, IFLOCK inode lock (for advisory file locking). Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: clean up header guardsSage Weil2010-08-028-16/+16
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: strip misleading/obsolete version, feature infoSage Weil2010-08-021-26/+4
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: specify supported features in super.hSage Weil2010-08-022-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Specify the supported/required feature bits in super.h client code instead of using the definitions from the shared kernel/userspace headers (which will go away shortly). Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: clean up fsid mount optionSage Weil2010-08-021-13/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Specify the fsid mount option in hex, not via the major/minor u64 hackery we had before. Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | ceph: remove unused 'monport' mount optionSage Weil2010-08-021-2/+0
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Sage Weil <sage@newdream.net>
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