- 23 10月, 2010 34 次提交
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由 Ryusuke Konishi 提交于
After applied the patch that unified sb instances, root dentry of snapshots can be left in dcache even after their trees are unmounted. The orphan root dentry/inode keeps a root object, and this causes false positive of nilfs_checkpoint_is_mounted function. This resolves the issue by having nilfs_checkpoint_is_mounted test whether the root dentry is busy or not. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
This makes use of iget5_locked to allocate or get inode for metadata files to stop using own inode allocator. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
This applies prepared rollback function and redirect function of metadata file to DAT file, and eliminates GCDAT inode. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
During garbage collection (GC), DAT file, which converts virtual block number to real block number, may return disk block number that is not yet written to the device. To avoid access to unwritten blocks, the current implementation stores changes to the caches of GCDAT during GC and atomically commit the changes into the DAT file after they are written to the device. This patch, instead, adds a function that makes a copy of specified buffer and stores it in nilfs_shadow_map, and a function to get the backup copy as needed (nilfs_mdt_freeze_buffer and nilfs_mdt_get_frozen_buffer respectively). Before DAT changes block number in an entry block, it makes a copy and redirect access to the buffer so that address conversion function (i.e. nilfs_dat_translate) refers to the old address saved in the copy. This patch gives requisites for such redirection. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
This adds optional function to metadata files which makes a copy of bmap, page caches, and b-tree node cache, and rolls back to the copy as needed. This enhancement is intended to displace gcdat inode that provides a similar function in a different way. In this patch, nilfs_shadow_map structure is added to store a copy of the foregoing states. nilfs_mdt_setup_shadow_map relates this structure to a metadata file. And, nilfs_mdt_save_to_shadow_map() and nilfs_mdt_restore_from_shadow_map() provides save and restore functions respectively. Finally, nilfs_mdt_clear_shadow_map() clears states of nilfs_shadow_map. The copy of b-tree node cache and page cache is made by duplicating only dirty pages into corresponding caches in nilfs_shadow_map. Their restoration is done by clearing dirty pages from original caches and by copying dirty pages back from nilfs_shadow_map. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
This adds routines to save and restore the state of bmap structure. The bmap state is stored in a given nilfs_bmap_store object. These routines will be used to roll back the state of dat inode without using gcdat inode. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
GC-inode now doesn't need the nilfs_mdt_info structure and there is no reason that it is a sort of metadata files. This stops the allocation and makes them not dependent on metadata file routines. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
Allows clear inode function (nilfs_clear_inode) to handle metadata files that uses bitmap-based object alloctor. DAT and ifile correspond to this. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
This flag is a fake used to distinguish type of super block instance. And, it got obsolete by the unification of sb. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
This stops pre-allocating nilfs object in nilfs_get_sb routine, and stops managing its life cycle by reference counting. nilfs_find_or_create_nilfs() function, nilfs->ns_mount_mutex, nilfs_objects list, and the reference counter will be removed through the simplification. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
This stops allocating multiple super block instances for a device. All snapshots and a current mode mount (i.e. latest tree) will be controlled with nilfs_root objects that are kept within an sb instance. nilfs_get_sb() is rewritten so that it always has a root object for the latest tree and snapshots make additional root objects. The root dentry of the latest tree is binded to sb->s_root even if it isn't attached on a directory. Root dentries of snapshots or the latest tree are binded to mnt->mnt_root on which they are mounted. With this patch, nilfs_find_sbinfo() function, nilfs->ns_supers list, and nilfs->ns_current back pointer, are deleted. In addition, init_nilfs() and load_nilfs() are simplified since they will be called once for a device, not repeatedly called for mount points. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
This splits the code to attach snapshots into a separate routine for convenience sake. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
This splits the code to allocate root dentry into a separate routine for convenience in successive changes. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
Snapshots of nilfs are read-only. After super block instances (sb) will be unified, nilfs will need to check write access by a way other than implicit test with IS_RDONLY(inode). This is because IS_RDONLY() refers to MS_RDONLY bit of inode->i_sb->s_flags and it will become inaccurate after the unification of sb. To prepare for the issue, this uses i_op->permission to deny write access to inodes in snapshots. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
This rewrites nilfs_checkpoint_is_mounted() function so that it decides whether a checkpoint is mounted by whether the corresponding root object is found in checkpoint tree. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
This moves sbi->s_inodes_count and sbi->s_blocks_count into nilfs_root object. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
This rewrites functions using ifile so that they get ifile from nilfs_root object, and will remove sbi->s_ifile. Some functions that don't know the root object are extended to receive it from caller. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
The previous export operations cannot handle multiple versions of a filesystem if they belong to the same sb instance. This adds a new type of file handle and extends export operations so that they can get the inode specified by a checkpoint number as well as an inode number and a generation number. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
This puts a pointer to nilfs_root object in the private part of on-memory inode, and makes nilfs_iget function pick up the inode with the same root object. Non-root inodes inherit its nilfs_root object from parent inode. That of the root inode is allocated through nilfs_attach_checkpoint() function. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
To hold multiple versions of a filesystem in one sb instance, a new on-memory structure is necessary to handle one or more checkpoints. This adds a red-black tree of checkpoints to nilfs object, and adds lookup and create functions for them. Each checkpoint is represented by "nilfs_root" structure, and this structure has rb_node to configure the rb-tree. The nilfs_root object is identified with a checkpoint number. For each snapshot, a nilfs_root object is allocated and the checkpoint number of snapshot is assigned to it. For a regular mount (i.e. current mode mount), NILFS_CPTREE_CURRENT_CNO constant is assigned to the corresponding nilfs_root object. Each nilfs_root object has an ifile inode and some counters. These items will displace those of nilfs_sb_info structure in successive patches. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
This uses inode hash function that vfs provides instead of the own hash table for caching gc inodes. This finally removes the own inode hash from nilfs. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
This separates a part of initialization code of metadata file inode, and makes it available from the nilfs iget function that a later patch will add to. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
This uses iget5_locked instead of iget_locked so that gc cache can look up inodes with an inode number and an optional checkpoint number. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
On-memory inode structures of nilfs have a member "i_cno" which stores a checkpoint number related to the inode. For gc-inodes, this field indicates version of data each gc-inode caches for GC. Log writer temporarily uses "i_cno" to transfer the latest checkpoint number. This stops the latter use and lets only gc-inodes use it. The purpose of this patch is to allow the successive change use "i_cno" for inode lookup. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
This allows sop->dirty_inode callback function (nilfs_dirty_inode) to handle metadata file inodes. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
The current nilfs_destroy_inode() doesn't handle metadata file inodes including gc inodes (dummy inodes used for garbage collection). This allows nilfs_destroy_inode() to destroy inodes of metadata files. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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由 Ryusuke Konishi 提交于
Compatibility of nilfs partitions is now managed with three feature sets. This changes old compatibility check with revision number so that it can accept future revisions. Note that we can stop support of experimental versions of nilfs that doesn't know the feature sets by incrementing NILFS_CURRENT_REV. We don't have to do it soon, but it would be a possible option whenever the need arises. Signed-off-by: NRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6由 Linus Torvalds 提交于
* 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: pcmcia: fix ni_daq_700 compilation pcmcia: IOCARD is also required for using IRQs
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: asm-generic/io.h: allow people to override individual funcs bitops: remove duplicated extern declarations bitops: make asm-generic/bitops/find.h more generic asm-generic: kdebug.h: Checkpatch cleanup asm-generic: fcntl: make exported headers use strict posix types asm-generic: cmpxchg does not handle non-long arguments asm-generic: make atomic_add_unless a function
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl由 Linus Torvalds 提交于
* 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl: vfs: make no_llseek the default vfs: don't use BKL in default_llseek llseek: automatically add .llseek fop libfs: use generic_file_llseek for simple_attr mac80211: disallow seeks in minstrel debug code lirc: make chardev nonseekable viotape: use noop_llseek raw: use explicit llseek file operations ibmasmfs: use generic_file_llseek spufs: use llseek in all file operations arm/omap: use generic_file_llseek in iommu_debug lkdtm: use generic_file_llseek in debugfs net/wireless: use generic_file_llseek in debugfs drm: use noop_llseek
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl由 Linus Torvalds 提交于
* 'vfs' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl: (30 commits) BKL: remove BKL from freevxfs BKL: remove BKL from qnx4 autofs4: Only declare function when CONFIG_COMPAT is defined autofs: Only declare function when CONFIG_COMPAT is defined ncpfs: Lock socket in ncpfs while setting its callbacks fs/locks.c: prepare for BKL removal BKL: Remove BKL from ncpfs BKL: Remove BKL from OCFS2 BKL: Remove BKL from squashfs BKL: Remove BKL from jffs2 BKL: Remove BKL from ecryptfs BKL: Remove BKL from afs BKL: Remove BKL from USB gadgetfs BKL: Remove BKL from autofs4 BKL: Remove BKL from isofs BKL: Remove BKL from fat BKL: Remove BKL from ext2 filesystem BKL: Remove BKL from do_new_mount() BKL: Remove BKL from cgroup BKL: Remove BKL from NTFS ...
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl由 Linus Torvalds 提交于
* 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl: block: autoconvert trivial BKL users to private mutex drivers: autoconvert trivial BKL users to private mutex ipmi: autoconvert trivial BKL users to private mutex mac: autoconvert trivial BKL users to private mutex mtd: autoconvert trivial BKL users to private mutex scsi: autoconvert trivial BKL users to private mutex Fix up trivial conflicts (due to addition of private mutex right next to deletion of a version string) in drivers/char/pcmcia/cm40[04]0_cs.c
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl由 Linus Torvalds 提交于
* 'config' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl: BKL: introduce CONFIG_BKL. dabusb: remove the BKL sunrpc: remove the big kernel lock init/main.c: remove BKL notations blktrace: remove the big kernel lock rtmutex-tester: make it build without BKL dvb-core: kill the big kernel lock dvb/bt8xx: kill the big kernel lock tlclk: remove big kernel lock fix rawctl compat ioctls breakage on amd64 and itanic uml: kill big kernel lock parisc: remove big kernel lock cris: autoconvert trivial BKL users alpha: kill big kernel lock isapnp: BKL removal s390/block: kill the big kernel lock hpet: kill BKL, add compat_ioctl
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由 Dominik Brodowski 提交于
Reported-by: NAnca Emanuel <anca.emanuel@gmail.com> Signed-off-by: NDominik Brodowski <linux@dominikbrodowski.net>
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- 22 10月, 2010 6 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip由 Linus Torvalds 提交于
* 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, 32-bit: Align percpu area and irq stacks to THREAD_SIZE x86: Move alloc_desk_mask variables inside ifdef x86-32: Align IRQ stacks properly x86: Remove CONFIG_4KSTACKS x86: Always use irq stacks Fixed up trivial conflicts in include/linux/{irq.h, percpu-defs.h}
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由 Linus Torvalds 提交于
Merge branch 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Hpet: Avoid the comparator readback penalty
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由 Alan Cox 提交于
Fortunately this is only exploitable on very unusual hardware. [Reported a while ago but nothing happened so just fixing it] Signed-off-by: NAlan Cox <alan@linux.intel.com> Cc: stable@kernel.org Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Dominik Brodowski 提交于
Dave Hinds pointed out to me that 37979e15 will break b43 and ray_cs, as IOCARD is not -- as the name would suggest -- only needed for cards using IO ports. Instead, as it re-deines several pins, it is also required for using interrupts. Signed-off-by: NDominik Brodowski <linux@dominikbrodowski.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc由 Linus Torvalds 提交于
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (71 commits) powerpc/44x: Update ppc44x_defconfig powerpc/watchdog: Make default timeout for Book-E watchdog a Kconfig option fsl_rio: Add comments for sRIO registers. powerpc/fsl-booke: Add e55xx (64-bit) smp defconfig powerpc/fsl-booke: Add p5020 DS board support powerpc/fsl-booke64: Use TLB CAMs to cover linear mapping on FSL 64-bit chips powerpc/fsl-booke: Add support for FSL Arch v1.0 MMU in setup_page_sizes powerpc/fsl-booke: Add support for FSL 64-bit e5500 core powerpc/85xx: add cache-sram support powerpc/85xx: add ngPIXIS FPGA device tree node to the P1022DS board powerpc: Fix compile error with paca code on ppc64e powerpc/fsl-booke: Add p3041 DS board support oprofile/fsl emb: Don't set MSR[PMM] until after clearing the interrupt. powerpc/fsl-booke: Add PCI device ids for P2040/P3041/P5010/P5020 QoirQ chips powerpc/mpc8xxx_gpio: Add support for 'qoriq-gpio' controllers powerpc/fsl_booke: Add support to boot from core other than 0 powerpc/p1022: Add probing for individual DMA channels powerpc/fsl_soc: Search all global-utilities nodes for rstccr powerpc: Fix invalid page flags in create TLB CAM path for PTE_64BIT powerpc/mpc83xx: Support for MPC8308 P1M board ... Fix up conflict with the generic irq_work changes in arch/powerpc/kernel/time.c
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git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev由 Linus Torvalds 提交于
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (26 commits) include/linux/libata.h: fix typo pata_bf54x: fix return type of bfin_set_devctl Drivers: ata: Makefile: replace the use of <module>-objs with <module>-y libahci: fix result_tf handling after an ATA PIO data-in command pata_sl82c105: implement sff_irq_check() method pata_sil680: implement sff_irq_check() method pata_pdc202xx_old: implement sff_irq_check() method pata_cmd640: implement sff_irq_check() method ata_piix: Add device ID for ICH4-L pata_sil680: make sil680_sff_exec_command() 'static' ata: Intel IDE-R support libata: reorder ata_queued_cmd to remove alignment padding on 64 bit builds libata: Signal that our SATL supports WRITE SAME(16) with UNMAP ata_piix: remove SIDPR locking libata: implement cross-port EH exclusion libata: add @ap to ata_wait_register() and introduce ata_msleep() ata_piix: implement LPM support libata: implement LPM support for port multipliers libata: reimplement link power management libata: implement sata_link_scr_lpm() and make ata_dev_set_feature() global ...
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