- 18 10月, 2007 40 次提交
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由 Aneesh Kumar K.V 提交于
Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
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由 Andreas Dilger 提交于
In pass1 of e2fsck, every inode table in the fileystem is scanned and checked, regardless of whether it is in use. This is this the most time consuming part of the filesystem check. The unintialized block group feature can greatly reduce e2fsck time by eliminating checking of uninitialized inodes. With this feature, there is a a high water mark of used inodes for each block group. Block and inode bitmaps can be uninitialized on disk via a flag in the group descriptor to avoid reading or scanning them at e2fsck time. A checksum of each group descriptor is used to ensure that corruption in the group descriptor's bit flags does not cause incorrect operation. The feature is enabled through a mkfs option mke2fs /dev/ -O uninit_groups A patch adding support for uninitialized block groups to e2fsprogs tools has been posted to the linux-ext4 mailing list. The patches have been stress tested with fsstress and fsx. In performance tests testing e2fsck time, we have seen that e2fsck time on ext3 grows linearly with the total number of inodes in the filesytem. In ext4 with the uninitialized block groups feature, the e2fsck time is constant, based solely on the number of used inodes rather than the total inode count. Since typical ext4 filesystems only use 1-10% of their inodes, this feature can greatly reduce e2fsck time for users. With performance improvement of 2-20 times, depending on how full the filesystem is. The attached graph shows the major improvements in e2fsck times in filesystems with a large total inode count, but few inodes in use. In each group descriptor if we have EXT4_BG_INODE_UNINIT set in bg_flags: Inode table is not initialized/used in this group. So we can skip the consistency check during fsck. EXT4_BG_BLOCK_UNINIT set in bg_flags: No block in the group is used. So we can skip the block bitmap verification for this group. We also add two new fields to group descriptor as a part of uninitialized group patch. __le16 bg_itable_unused; /* Unused inodes count */ __le16 bg_checksum; /* crc16(sb_uuid+group+desc) */ bg_itable_unused: If we have EXT4_BG_INODE_UNINIT not set in bg_flags then bg_itable_unused will give the offset within the inode table till the inodes are used. This can be used by fsck to skip list of inodes that are marked unused. bg_checksum: Now that we depend on bg_flags and bg_itable_unused to determine the block and inode usage, we need to make sure group descriptor is not corrupt. We add checksum to group descriptor to detect corruption. If the descriptor is found to be corrupt, we mark all the blocks and inodes in the group used. Signed-off-by: NAvantika Mathur <mathur@us.ibm.com> Signed-off-by: NAndreas Dilger <adilger@clusterfs.com> Signed-off-by: NMingming Cao <cmm@us.ibm.com> Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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由 Eric Sandeen 提交于
CONFIG_EXT4_INDEX is not an exposed config option in the kernel, and it is unconditionally defined in ext4_fs.h. tune2fs is already able to turn off dir indexing, so at this point it's just cluttering up the code. Remove it. Signed-off-by: NEric Sandeen <sandeen@redhat.com> Signed-off-by: NMingming Cao <cmm@us.ibm.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
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由 Coly Li 提交于
Fragment support in ext2/3/4 was never implemented, and it probably will never be implemented. So remove it from ext4. Signed-off-by: NColy Li <coyli@suse.de> Acked-by: NAndreas Dilger <adilger@clusterfs.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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由 Jose R. Santos 提交于
Mostly stolen from akpm's JBD cleanup patch. - use `#ifdef foo' instead of `#if defined(foo)' - Make journal_enable_debug __read_mostly just for the heck of it - Make jbd_debugfs_dir and jbd_debug static - debugfs_remove(NULL) is legal: remove unneeded tests - remove unnecessary empty loops Signed-off-by: NJose R. Santos <jrs@us.ibm.com> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
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由 Jan Kara 提交于
We should really call journal_abort() and not __journal_abort_hard() in case of errors. The latter call does not record the error in the journal superblock and thus filesystem won't be marked as with errors later (and user could happily mount it without any warning). Signed-off-by: NJan Kara <jack@suse.cz> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
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由 Mingming Cao 提交于
change JBD_XXX macros to JBD2_XXX in JBD2/Ext4 Signed-off-by: NMingming Cao <cmm@us.ibm.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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由 Mingming Cao 提交于
Convert kmalloc to kzalloc() and get rid of the memset(). Signed-off-by: NMingming Cao <cmm@us.ibm.com>
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由 Mingming Cao 提交于
This patch cleans up jbd_kmalloc and replace it with kmalloc directly Signed-off-by: NMingming Cao <cmm@us.ibm.com>
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由 Mingming Cao 提交于
This patch cleans up jbd_kmalloc and replace it with kmalloc directly Signed-off-by: NMingming Cao <cmm@us.ibm.com>
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由 Mingming Cao 提交于
JBD2: Replace slab allocations with page allocations JBD2 allocate memory for committed_data and frozen_data from slab. However JBD2 should not pass slab pages down to the block layer. Use page allocator pages instead. This will also prepare JBD for the large blocksize patchset. Signed-off-by: NChristoph Lameter <clameter@sgi.com> Signed-off-by: NMingming Cao <cmm@us.ibm.com>
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由 Mingming Cao 提交于
JBD: Replace slab allocations with page allocations JBD allocate memory for committed_data and frozen_data from slab. However JBD should not pass slab pages down to the block layer. Use page allocator pages instead. This will also prepare JBD for the large blocksize patchset. Signed-off-by: NChristoph Lameter <clameter@sgi.com> Signed-off-by: NMingming Cao <cmm@us.ibm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6由 Linus Torvalds 提交于
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] fix non-numa build
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git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: 9p: remove sysctl 9p: fix bad kconfig cross-dependency 9p: soften invalidation in loose_mode 9p: attach-per-user 9p: rename uid and gid parameters 9p: define session flags 9p: Make transports dynamic
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由 Andrew Morton 提交于
arch/ia64/kernel/machine_kexec.c: In function `arch_crash_save_vmcoreinfo': arch/ia64/kernel/machine_kexec.c:131: error: `pgdat_list' undeclared (first use in this function) arch/ia64/kernel/machine_kexec.c:131: error: (Each undeclared identifier is reported only once arch/ia64/kernel/machine_kexec.c:131: error: for each function it appears in.) arch/ia64/kernel/machine_kexec.c:134: error: `node_memblk' undeclared (first use in this function) arch/ia64/kernel/machine_kexec.c:135: error: `NR_NODE_MEMBLKS' undeclared (first use in this function) arch/ia64/kernel/machine_kexec.c:136: error: invalid application of `sizeof' to incomplete type `node_memblk_s' arch/ia64/kernel/machine_kexec.c:137: error: dereferencing pointer to incomplete type arch/ia64/kernel/machine_kexec.c:138: error: dereferencing pointer to incomplete type make[1]: *** [arch/ia64/kernel/machine_kexec.o] Error 1 Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NTony Luck <tony.luck@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: net: libertas sdio driver mmc: at91_mci: cleanup: use MCI_ERRORS mmc: possible leak in mmc_read_ext_csd
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由 Pierre Ossman 提交于
Add driver for Marvell's Libertas 8385 and 8686 wifi chips. Signed-off-by: NPierre Ossman <drzeus@drzeus.cx> Acked-by: NDan Williams <dcbw@redhat.com>
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ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86由 Linus Torvalds 提交于
* ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86: (114 commits) x86: delete vsyscall files during make clean kbuild: fix typo SRCARCH in find_sources x86: fix kernel rebuild due to vsyscall fallout .gitignore update for x86 arch x86: unify include/asm/debugreg_32/64.h x86: unify include/asm/unwind_32/64.h x86: unify include/asm/types_32/64.h x86: unify include/asm/tlb_32/64.h x86: unify include/asm/siginfo_32/64.h x86: unify include/asm/bug_32/64.h x86: unify include/asm/mman_32/64.h x86: unify include/asm/agp_32/64.h x86: unify include/asm/kdebug_32/64.h x86: unify include/asm/ioctls_32/64.h x86: unify include/asm/floppy_32/64.h x86: apply missing DMA/OOM prevention to floppy_32.h x86: unify include/asm/cache_32/64.h x86: unify include/asm/cache_32/64.h x86: unify include/asm/dmi_32/64.h x86: unify include/asm/delay_32/64.h ...
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由 Sam Ravnborg 提交于
make clean failed to delete a few files in x86/kernel. This is because kbuild does not see the correct/full kernel/Makefile. As a workaround until the Makefiles are merged specify the files to be deleted in the common Makefile. Reported by Mike Galbraith <efault@gmx.de> Signed-off-by: NSam Ravnborg <sam@ravnborg.org> Cc: Mike Galbraith <efault@gmx.de> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Yinghai Lu 提交于
otherwise get the two copy file list in SRCARCH for cscope: C symbol: start_kernel File Function Line 0 proto.h <global> 11 extern void start_kernel(void ); 1 start_kernel.h <global> 10 extern asmlinkage void __init start_kernel(void ); 2 head32.c i386_start_kernel 37 start_kernel(); 3 head32.c i386_start_kernel 37 start_kernel(); 4 head64.c x86_64_start_kernel 85 start_kernel(); 5 head64.c x86_64_start_kernel 85 start_kernel(); 6 head_32.S options 199 cmpb $0,%cl #the first CPU calls start_kernel 7 head_32.S options 199 cmpb $0,%cl #the first CPU calls start_kernel 8 enlighten.c xen_start_kernel 1145 start_kernel(); 9 enlighten.c xen_start_kernel 1145 start_kernel(); a lguest.c lguest_init 1095 start_kernel(); b main.c start_kernel 513 asmlinkage void __init start_kernel(void ) after the patch: C symbol: start_kernel File Function Line 0 proto.h <global> 11 extern void start_kernel(void ); 1 start_kernel.h <global> 10 extern asmlinkage void __init start_kernel(void ); 2 head32.c i386_start_kernel 37 start_kernel(); 3 head64.c x86_64_start_kernel 85 start_kernel(); 4 head_32.S options 199 cmpb $0,%cl #the first CPU calls start_kernel 5 enlighten.c xen_start_kernel 1145 start_kernel(); 6 lguest.c lguest_init 1095 start_kernel(); 7 main.c start_kernel 513 asmlinkage void __init start_kernel(void ) Signed-off-by: NYinghai Lu <yinghai.lu@sun.com> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Eric Van Hensbergen 提交于
A sysctl method was added to enable and disable debugging levels. After further review, it was decided that there are better approaches to doing this and the sysctl methodology isn't really desirable. This patch removes the sysctl code from 9p. Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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由 Andrew Victor 提交于
A small MMC driver cleanup. Use the defined AT91_MCI_ERRORS in at91_mci_completed_command() instead of specifying all the error bits individually. Signed-off-by: NAndrew Victor <andrew@sanpeople.com> Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NPierre Ossman <drzeus@drzeus.cx>
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由 Florin Malita 提交于
The exception path associated with an invalid ext_csd_struct returns without freeing ext_csd. Coverity CID 1909. Signed-off-by: Florin Malita Signed-off-by: NPierre Ossman <drzeus@drzeus.cx>
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由 Eric Van Hensbergen 提交于
This patch moves transport dynamic registration and matching to the net module to prevent a bad Kconfig dependency between the net and fs 9p modules. Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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由 Eric Van Hensbergen 提交于
Loose mode in 9p utilizes the page cache without respecting coherency with the server. Any writes previously invaldiated the entire mapping for a file. This patch softens the behavior to only invalidate the region of the actual write. Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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由 Latchesar Ionkov 提交于
The 9P2000 protocol requires the authentication and permission checks to be done in the file server. For that reason every user that accesses the file server tree has to authenticate and attach to the server separately. Multiple users can share the same connection to the server. Currently v9fs does a single attach and executes all I/O operations as a single user. This makes using v9fs in multiuser environment unsafe as it depends on the client doing the permission checking. This patch improves the 9P2000 support by allowing every user to attach separately. The patch defines three modes of access (new mount option 'access'): - attach-per-user (access=user) (default mode for 9P2000.u) If a user tries to access a file served by v9fs for the first time, v9fs sends an attach command to the server (Tattach) specifying the user. If the attach succeeds, the user can access the v9fs tree. As there is no uname->uid (string->integer) mapping yet, this mode works only with the 9P2000.u dialect. - allow only one user to access the tree (access=<uid>) Only the user with uid can access the v9fs tree. Other users that attempt to access it will get EPERM error. - do all operations as a single user (access=any) (default for 9P2000) V9fs does a single attach and all operations are done as a single user. If this mode is selected, the v9fs behavior is identical with the current one. Signed-off-by: NLatchesar Ionkov <lucho@ionkov.net> Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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由 Latchesar Ionkov 提交于
Change the names of 'uid' and 'gid' parameters to the more appropriate 'dfltuid' and 'dfltgid'. This also sets the default uid/gid to -2 (aka nfsnobody) Signed-off-by: NLatchesar Ionkov <lucho@ionkov.net> Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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由 Latchesar Ionkov 提交于
Create more general flags field in the v9fs_session_info struct and move the 'extended' flag as a bit in the flags. Signed-off-by: NLatchesar Ionkov <lucho@ionkov.net> Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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由 Eric Van Hensbergen 提交于
This patch abstracts out the interfaces to underlying transports so that new transports can be added as modules. This should also allow kernel configuration of transports without ifdef-hell. Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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由 Sam Ravnborg 提交于
Fix rebuild of kernel when there is no changes. This happened for i386. Using make V=2 hinted that the output files were not assigned to targets - fixed by this patch. Reported by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: NSam Ravnborg <sam@ravnborg.org> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Denis V. Lunev 提交于
This patch: - makes .gitignore files visible to git - makes arch/x86/kernel/vsyscall_32.lds and arch/i386/boot invisible Signed-off-by: NDenis V. Lunev <den@openvz.org> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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git://git.kernel.dk/data/git/linux-2.6-block由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block: [BLOCK] blk_rq_map_sg() next_sg fixup Revert "[SCSI] Remove full sg table memset()"
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由 Thomas Gleixner 提交于
Almost identical except for the extra DR_LEN_8 and the different DR_CONTROL_RESERVED defines. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Conflicts: include/asm-x86/Kbuild
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由 Thomas Gleixner 提交于
32bit has an extra UNW_FP define, which does not hurt. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Mostly the same. Make the few exceptions conditional. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Conflicts: include/asm-x86/types_32.h
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由 Thomas Gleixner 提交于
Same file, except for whitespace, comment formatting. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Same file, except for the 64bit PREAMBLE_SIZE define. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Same file, except for whitespace, comment formatting and the .long/.quad delta which can be solved by a define. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Same file, except for the extra 64bit MAP_32BIT define, which does not hurt for 32 bit compiles. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
The 32bit D(n) debug addon can be made exclusive for 32 bit compiles. Otherwise all the same. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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