aboutsummaryrefslogtreecommitdiffstats
path: root/fs
Commit message (Collapse)AuthorAgeFilesLines
...
| * btrfs: restructure find_free_dev_extent()Miao Xie2011-01-162-68/+91
| | | | | | | | | | | | | | | | | | - make it return the start position and length of the max free space when it can not find a suitable free space. - make it more readability Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * btrfs: fix wrong calculation of stripe sizeMiao Xie2011-01-161-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are two tiny problem: - One is When we check the chunk size is greater than the max chunk size or not, we should take mirrors into account, but the original code didn't. - The other is btrfs shouldn't use the size of the residual free space as the length of of a dup chunk when doing chunk allocation. It is because the device space that a dup chunk needs is twice as large as the chunk size, if we use the size of the residual free space as the length of a dup chunk, we can not get enough free space. Fix it. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Reviewed-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * btrfs: try to reclaim some space when chunk allocation failsMiao Xie2011-01-161-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We cannot write data into files when when there is tiny space in the filesystem. Reproduce steps: # mkfs.btrfs /dev/sda1 # mount /dev/sda1 /mnt # dd if=/dev/zero of=/mnt/tmpfile0 bs=4K count=1 # dd if=/dev/zero of=/mnt/tmpfile1 bs=4K count=99999999999999 (fill the filesystem) # umount /mnt # mount /dev/sda1 /mnt # rm -f /mnt/tmpfile0 # dd if=/dev/zero of=/mnt/tmpfile0 bs=4K count=1 (failed with nospec) But if we do the last step again, we can write data successfully. The reason of the problem is that btrfs didn't try to commit the current transaction and reclaim some space when chunk allocation failed. This patch fixes it by committing the current transaction to reclaim some space when chunk allocation fails. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Reviewed-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * btrfs: fix wrong data space statisticsMiao Xie2011-01-161-4/+3
| | | | | | | | | | | | | | | | | | Josef has implemented mixed data/metadata chunks, we must add those chunks' space just like data chunks. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Reviewed-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * fs/btrfs: Fix build of ctreeStefan Schmidt2011-01-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CC [M] fs/btrfs/ctree.o In file included from fs/btrfs/ctree.c:21:0: fs/btrfs/ctree.h:1003:17: error: field <91>super_kobj<92> has incomplete type fs/btrfs/ctree.h:1074:17: error: field <91>root_kobj<92> has incomplete type make[2]: *** [fs/btrfs/ctree.o] Error 1 make[1]: *** [fs/btrfs] Error 2 make: *** [fs] Error 2 We need to include kobject.h here. Reported-by: Jeff Garzik <jeff@garzik.org> Fix-suggested-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Merge branch 'lzo-support' of git://repo.or.cz/linux-btrfs-devel into btrfs-38Chris Mason2011-01-1620-385/+1051
| |\
| | * btrfs: Extract duplicate decompress codeLi Zefan2010-12-224-194/+115
| | | | | | | | | | | | | | | | | | | | | Add a common function to copy decompressed data from working buffer to bio pages. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
| | * btrfs: Allow to specify compress method when defragLi Zefan2010-12-222-2/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update defrag ioctl, so one can choose lzo or zlib when turning on compression in defrag operation. Changelog: v1 -> v2 - Add incompability flag. - Fix to check invalid compress type. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
| | * btrfs: Add lzo compression supportLi Zefan2010-12-228-8/+527
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Lzo is a much faster compression algorithm than gzib, so would allow more users to enable transparent compression, and some users can choose from compression ratio and speed for different applications Usage: # mount -t btrfs -o compress[=<zlib,lzo>] dev /mnt or # mount -t btrfs -o compress-force[=<zlib,lzo>] dev /mnt "-o compress" without argument is still allowed for compatability. Compatibility: If we mount a filesystem with lzo compression, it will not be able be mounted in old kernels. One reason is, otherwise btrfs will directly dump compressed data, which sits in inline extent, to user. Performance: The test copied a linux source tarball (~400M) from an ext4 partition to the btrfs partition, and then extracted it. (time in second) lzo zlib nocompress copy: 10.6 21.7 14.9 extract: 70.1 94.4 66.6 (data size in MB) lzo zlib nocompress copy: 185.87 108.69 394.49 extract: 193.80 132.36 381.21 Changelog: v1 -> v2: - Select LZO_COMPRESS and LZO_DECOMPRESS in btrfs Kconfig. - Add incompability flag. - Fix error handling in compress code. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
| | * btrfs: Allow to add new compression algorithmLi Zefan2010-12-2215-282/+473
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the code aware of compression type, instead of always assuming zlib compression. Also make the zlib workspace function as common code for all compression types. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
| | * btrfs: Fix error handling in zlibLi Zefan2010-12-221-0/+8
| | | | | | | | | | | | | | | | | | | | | Return failure if alloc_page() fails to allocate memory, and the upper code will just give up compression. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
| | * btrfs: Fix bugs in zlib workspaceLi Zefan2010-12-221-2/+5
| | | | | | | | | | | | | | | | | | | | | - Fix a race that can result in alloc_workspace > cpus. - Fix to check num_workspace after wakeup. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
| * | Merge branch 'readonly-snapshots' of git://repo.or.cz/linux-btrfs-devel into ↵Chris Mason2011-01-167-49/+195
| |\ \ | | | | | | | | | | | | btrfs-38
| | * | Btrfs: Add BTRFS_IOC_SUBVOL_GETFLAGS/SETFLAGS ioctlsLi Zefan2010-12-232-0/+85
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This allows us to set a snapshot or a subvolume readonly or writable on the fly. Usage: Set BTRFS_SUBVOL_RDONLY of btrfs_ioctl_vol_arg_v2->flags, and then call ioctl(BTRFS_IOCTL_SUBVOL_SETFLAGS); Changelog for v3: - Change to pass __u64 as ioctl parameter. Changelog for v2: - Add _GETFLAGS ioctl. - Check if the passed fd is the root of a subvolume. - Change the name from _SNAP_SETFLAGS to _SUBVOL_SETFLAGS. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
| | * | Btrfs: Add readonly snapshots supportLi Zefan2010-12-237-10/+75
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Usage: Set BTRFS_SUBVOL_RDONLY of btrfs_ioctl_vol_arg_v2->flags, and call ioctl(BTRFS_I0CTL_SNAP_CREATE_V2). Implementation: - Set readonly bit of btrfs_root_item->flags. - Add readonly checks in btrfs_permission (inode_permission), btrfs_setattr, btrfs_set/remove_xattr and some ioctls. Changelog for v3: - Eliminate btrfs_root->readonly, but check btrfs_root->root_item.flags. - Rename BTRFS_ROOT_SNAP_RDONLY to BTRFS_ROOT_SUBVOL_RDONLY. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
| | * | Btrfs: Refactor btrfs_ioctl_snap_create()Li Zefan2010-12-231-44/+40
| | |/ | | | | | | | | | | | | | | | | | | Split it into two functions for two different ioctls, since they share no common code. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
| * | Btrfs: fix off by one while setting block groups readonlyChris Mason2011-01-041-1/+2
| |/ | | | | | | | | | | | | | | | | When we read in block groups, we'll set non-redundant groups readonly if we find a raid1, DUP or raid10 group. But the ro code has an off by one bug in the math around testing to make sure out accounting doesn't go wrong. Signed-off-by: Chris Mason <chris.mason@oracle.com>
* | Merge branch 'for-linus' of ↵Linus Torvalds2011-01-177-80/+82
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6: ecryptfs: remove unnecessary decrypt when extending a file ecryptfs: Fix ecryptfs_printk() size_t warnings fs/ecryptfs: Add printf format/argument verification and fix fallout ecryptfs: fixed testing of file descriptor flags ecryptfs: test lower_file pointer when lower_file_mutex is locked ecryptfs: missing initialization of the superblock 'magic' field ecryptfs: moved ECRYPTFS_SUPER_MAGIC definition to linux/magic.h ecryptfs: fix truncation error in ecryptfs_read_update_atime
| * | ecryptfs: remove unnecessary decrypt when extending a fileFrank Swiderski2011-01-171-8/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Removes an unecessary page decrypt from ecryptfs_begin_write when the page is beyond the current file size. Previously, the call to ecryptfs_decrypt_page would result in a read of 0 bytes, but still attempt to decrypt an entire page. This patch detects that case and merely zeros the page before marking it up-to-date. Signed-off-by: Frank Swiderski <fes@chromium.org> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
| * | ecryptfs: Fix ecryptfs_printk() size_t warningsTyler Hicks2011-01-172-12/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | Commit cb55d21f6fa19d8c6c2680d90317ce88c1f57269 revealed a number of missing 'z' length modifiers in calls to ecryptfs_printk() when printing variables of type size_t. This patch fixes those compiler warnings. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
| * | fs/ecryptfs: Add printf format/argument verification and fix falloutJoe Perches2011-01-176-29/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add __attribute__((format... to __ecryptfs_printk Make formats and arguments match. Add casts to (unsigned long long) for %llu. Signed-off-by: Joe Perches <joe@perches.com> [tyhicks: 80 columns cleanup and fixed typo] Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
| * | ecryptfs: fixed testing of file descriptor flagsRoberto Sassu2011-01-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | This patch replaces the check (lower_file->f_flags & O_RDONLY) with ((lower_file & O_ACCMODE) == O_RDONLY). Signed-off-by: Roberto Sassu <roberto.sassu@polito.it> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
| * | ecryptfs: test lower_file pointer when lower_file_mutex is lockedRoberto Sassu2011-01-172-27/+21
| | | | | | | | | | | | | | | | | | | | | | | | This patch prevents the lower_file pointer in the 'ecryptfs_inode_info' structure to be checked when the mutex 'lower_file_mutex' is not locked. Signed-off-by: Roberto Sassu <roberto.sassu@polito.it> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
| * | ecryptfs: missing initialization of the superblock 'magic' fieldRoberto Sassu2011-01-171-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch initializes the 'magic' field of ecryptfs filesystems to ECRYPTFS_SUPER_MAGIC. Signed-off-by: Roberto Sassu <roberto.sassu@polito.it> [tyhicks: merge with 66cb76666d69] Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
| * | ecryptfs: moved ECRYPTFS_SUPER_MAGIC definition to linux/magic.hRoberto Sassu2011-01-171-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | The definition of ECRYPTFS_SUPER_MAGIC has been moved to the include file 'linux/magic.h' to become available to other kernel subsystems. Signed-off-by: Roberto Sassu <roberto.sassu@polito.it> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
| * | ecryptfs: fix truncation error in ecryptfs_read_update_atimeEdward Shishkin2011-01-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is similar to the bug found in direct-io not so long ago. Fix up truncation (ssize_t->int). This only matters with >2G reads/writes, which the kernel doesn't permit. Signed-off-by: Edward Shishkin <edward.shishkin@gmail.com> Cc: Jeff Moyer <jmoyer@redhat.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Eric Sandeen <esandeen@redhat.com> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
* | | xfs: Do not name variables "panic"Geert Uytterhoeven2011-01-171-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On platforms that call panic() inside their BUG() macro (m68k/sun3, and all platforms that don't set HAVE_ARCH_BUG), compilation fails with: | fs/xfs/support/debug.c: In function ‘xfs_cmn_err’: | fs/xfs/support/debug.c:92: error: called object ‘panic’ is not a function as the local variable "panic" conflicts with the "panic()" function. Rename the local variable to resolve this. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds2011-01-172-2/+4
|\ \ \ | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: cifs: add cruid= mount option cifs: cFYI the entire error code in map_smb_to_linux_error
| * | | cifs: add cruid= mount optionJeff Layton2011-01-141-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit 3e4b3e1f we separated the "uid" mount option such that it no longer determined the owner of the credential cache by default. When we did this, we added a new option to cifs.upcall (--legacy-uid) to try to make it so that it would behave the same was as it did before. This ignored a rather important point -- the kernel has no way to know what options are being passed to cifs.upcall, so it doesn't know what uid it should use to determine whether to match an existing krb5 session. The simplest solution is to simply add a new "cruid=" mount option that only governs the uid owner of the credential cache for the mount. Unfortunately, this means that the --legacy-uid option in cifs.upcall was ill-considered and is now useless, but I don't see a better way to deal with this. A patch for the mount.cifs manpage will follow once this patch has been accepted. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | | cifs: cFYI the entire error code in map_smb_to_linux_errorJeff Layton2011-01-141-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently only print the DOS error part. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* | | | Merge git://git.infradead.org/mtd-2.6Linus Torvalds2011-01-173-10/+9
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.infradead.org/mtd-2.6: (59 commits) mtd: mtdpart: disallow reading OOB past the end of the partition mtd: pxa3xx_nand: NULL dereference in pxa3xx_nand_probe UBI: use mtd->writebufsize to set minimal I/O unit size mtd: initialize writebufsize in the MTD object of a partition mtd: onenand: add mtd->writebufsize initialization mtd: nand: add mtd->writebufsize initialization mtd: cfi: add writebufsize initialization mtd: add writebufsize field to mtd_info struct mtd: OneNAND: OMAP2/3: prevent regulator sleeping while OneNAND is in use mtd: OneNAND: add enable / disable methods to onenand_chip mtd: m25p80: Fix JEDEC ID for AT26DF321 mtd: txx9ndfmc: limit transfer bytes to 512 (ECC provides 6 bytes max) mtd: cfi_cmdset_0002: add support for Samsung K8D3x16UxC NOR chips mtd: cfi_cmdset_0002: add support for Samsung K8D6x16UxM NOR chips mtd: nand: ams-delta: drop omap_read/write, use ioremap mtd: m25p80: add debugging trace in sst_write mtd: nand: ams-delta: select for built-in by default mtd: OneNAND: lighten scary initial bad block messages mtd: OneNAND: OMAP2/3: add support for command line partitioning mtd: nand: rearrange ONFI revision checking, add ONFI 2.3 ... Fix up trivial conflict in drivers/mtd/Kconfig as per DavidW.
| * | | | jffs2: typo in commentDan Carpenter2010-12-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It says FB instead of FS (file system). Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| * | | | jffs2: fix error value signVasiliy Kulikov2010-12-031-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | do_verify_xattr_datum(), do_load_xattr_datum(), load_xattr_datum() and verify_xattr_ref() should return negative value on error. Sometimes they return EIO that is positive. Change this to -EIO. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| * | | | jffs2: use vzallocJoe Perches2010-12-031-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | | | | fs: fix address space warnings in ioctl_fiemap()Namhyung Kim2011-01-171-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The fi_extents_start field of struct fiemap_extent_info is a user pointer but was not marked as __user. This makes sparse emit following warnings: CHECK fs/ioctl.c fs/ioctl.c:114:26: warning: incorrect type in argument 1 (different address spaces) fs/ioctl.c:114:26: expected void [noderef] <asn:1>*dst fs/ioctl.c:114:26: got struct fiemap_extent *[assigned] dest fs/ioctl.c:202:14: warning: incorrect type in argument 1 (different address spaces) fs/ioctl.c:202:14: expected void const volatile [noderef] <asn:1>*<noident> fs/ioctl.c:202:14: got struct fiemap_extent *[assigned] fi_extents_start fs/ioctl.c:212:27: warning: incorrect type in argument 1 (different address spaces) fs/ioctl.c:212:27: expected void [noderef] <asn:1>*dst fs/ioctl.c:212:27: got char *<noident> Also add 'ufiemap' variable to eliminate unnecessary casts. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | aio: check return value of create_workqueue()Namhyung Kim2011-01-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | hpfs_setattr error case avoids unlock_kernelDr. David Alan Gilbert2011-01-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixed a case that 'sparse' spotted where hpfs_setattr has an error return that didn't go through it's path that unlocks. This is against git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git version 6313e3c21743cc88bb5bd8aa72948ee1e83937b6. Build tested only, I don't have an hpfs file system to test. Dave Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | compat: copy missing fields in compat_statfs64 to userNamhyung Kim2011-01-171-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | f_flags and f_spare fields were not copied to userspace when compat_sys_[f]statfs64 called. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | compat: update comment of compat statfs syscallsNamhyung Kim2011-01-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The commit 7ed1ee6118ae ("Take statfs variants to fs/statfs.c") separates out statfs syscalls from fs/open.c. Thus the comment should be changed also. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Cc: Jiri Kosina <trivial@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | compat: remove unnecessary assignment in compat_rw_copy_check_uvector()Namhyung Kim2011-01-171-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | *@ret_pointer is initialized to @fast_pointer thus the assignment is redundant. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Cc: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | fs: FS_POSIX_ACL does not depend on BLOCKRandy Dunlap2011-01-171-9/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Fix a kconfig unmet dependency warning. - Remove the comment that identifies which filesystems use POSIX ACL utility routines. - Move the FS_POSIX_ACL symbol outside of the BLOCK symbol if/endif block because its functions do not depend on BLOCK and some of the filesystems that use it do not depend on BLOCK. warning: (GENERIC_ACL && JFFS2_FS_POSIX_ACL && NFSD_V4 && NFS_ACL_SUPPORT && 9P_FS_POSIX_ACL) selects FS_POSIX_ACL which has unmet direct dependencies (BLOCK) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | fs: Remove unlikely() from fget_light()Steven Rostedt2011-01-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's an unlikely() in fget_light() that assumes the file ref count will be 1. Running the annotate branch profiler on a desktop that is performing daily tasks (running firefox, evolution, xchat and is also part of a distcc farm), it shows that the ref count is not 1 that often. correct incorrect % Function File Line ------- --------- - -------- ---- ---- 1035099358 6209599193 85 fget_light file_table.c 315 Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | fallocate should be a file operationChristoph Hellwig2011-01-1711-444/+437
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently all filesystems except XFS implement fallocate asynchronously, while XFS forced a commit. Both of these are suboptimal - in case of O_SYNC I/O we really want our allocation on disk, especially for the !KEEP_SIZE case where we actually grow the file with user-visible zeroes. On the other hand always commiting the transaction is a bad idea for fast-path uses of fallocate like for example in recent Samba versions. Given that block allocation is a data plane operation anyway change it from an inode operation to a file operation so that we have the file structure available that lets us check for O_SYNC. This also includes moving the code around for a few of the filesystems, and remove the already unnedded S_ISDIR checks given that we only wire up fallocate for regular files. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | make the feature checks in ->fallocate future proofChristoph Hellwig2011-01-175-3/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of various home grown checks that might need updates for new flags just check for any bit outside the mask of the features supported by the filesystem. This makes the check future proof for any newly added flag. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | tidy up around finish_automount()Al Viro2011-01-172-30/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | do_add_mount() and mnt_clear_expiry() are not needed outside of namespace.c anymore, now that namei has finish_automount() to use. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | don't drop newmnt on error in do_add_mount()Al Viro2011-01-171-11/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | That gets rid of the kludge in finish_automount() - we need to keep refcount on the vfsmount as-is until we evict it from expiry list. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | Take the completion of automount into new helperAl Viro2011-01-173-26/+39
| |_|/ / |/| | | | | | | | | | | | | | | | | | | ... and shift it from namei.c to namespace.c Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | Merge branch 'for-linus' of ↵Linus Torvalds2011-01-163-6/+4
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/nab/scsi-post-merge-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/scsi-post-merge-2.6: ocfs2: Make OCFS2_FS depend on CONFIGFS_FS dlm: Make DLM depend on CONFIGFS_FS net: Make NETCONSOLE_DYNAMIC depend on CONFIGFS_FS configfs: change depends -> select SYSFS [SCSI] sd,sr: kill compat SDEV_MEDIA_CHANGE event [SCSI] sd: implement sd_check_events()
| * | | | ocfs2: Make OCFS2_FS depend on CONFIGFS_FSNicholas Bellinger2011-01-161-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following kconfig error after changing CONFIGFS_FS -> select SYSFS: fs/sysfs/Kconfig:1:error: recursive dependency detected! fs/sysfs/Kconfig:1: symbol SYSFS is selected by CONFIGFS_FS fs/configfs/Kconfig:1: symbol CONFIGFS_FS is selected by OCFS2_FS fs/ocfs2/Kconfig:1: symbol OCFS2_FS depends on SYSFS Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Cc: Joel Becker <jlbec@evilplan.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: James Bottomley <James.Bottomley@suse.de>
| * | | | dlm: Make DLM depend on CONFIGFS_FSNicholas Bellinger2011-01-161-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following kconfig error after changing CONFIGFS_FS -> select SYSFS: fs/sysfs/Kconfig:1:error: recursive dependency detected! fs/sysfs/Kconfig:1: symbol SYSFS is selected by CONFIGFS_FS fs/configfs/Kconfig:1: symbol CONFIGFS_FS is selected by DLM fs/dlm/Kconfig:1: symbol DLM depends on SYSFS Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Cc: Joel Becker <jlbec@evilplan.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: James Bottomley <James.Bottomley@suse.de>
generated by cgit v1.1 at 2025-01-29 06:24:41 +0000