- 22 5月, 2010 40 次提交
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由 Al Viro 提交于
Make sure that s_umount is acquired *before* we drop the final active reference; we still have the fast path (atomic_dec_unless) and we have gotten rid of the window between the moment when s_active hits zero and s_umount is acquired. Which simplifies the living hell out of grab_super() and inotify pin_to_kill() stuff. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
use atomic_inc_not_zero(&sb->s_active) instead of playing games with checking ->s_count > S_BIAS 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
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
First of all, get_sb_nodev() grabs anon dev minor and we never free it in ecryptfs ->kill_sb(). Moreover, on one of the failure exits in ecryptfs_get_sb() we leak things - it happens before we set ->s_root and ->put_super() won't be called in that case. Solution: kill ->put_super(), do all that stuff in ->kill_sb(). And use kill_anon_sb() instead of generic_shutdown_super() to deal with anon dev leak. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
postpone simple_set_mnt() until we know we won't fail. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Christoph Hellwig 提交于
Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
We set the "it's dead, don't mount on it" flag _and_ do not remove it if we turn the damn thing negative and leave it around. And if it goes positive afterwards, well... Fortunately, there's only one place where that needs to be caught: only d_delete() can turn the sucker negative without immediately freeing it; all other places that can lead to ->d_iput() call are followed by unconditionally freeing struct dentry in question. So the fix is obvious: Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16014Reported-by: NAdam Tkac <vonsch@gmail.com> Tested-by: NAdam Tkac <vonsch@gmail.com> Cc: <stable@kernel.org> [2.6.34.x] Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6由 Linus Torvalds 提交于
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6: udf: BKL ioctl pushdown
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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: (92 commits) powerpc: Remove unused 'protect4gb' boot parameter powerpc: Build-in e1000e for pseries & ppc64_defconfig powerpc/pseries: Make request_ras_irqs() available to other pseries code powerpc/numa: Use ibm,architecture-vec-5 to detect form 1 affinity powerpc/numa: Set a smaller value for RECLAIM_DISTANCE to enable zone reclaim powerpc: Use smt_snooze_delay=-1 to always busy loop powerpc: Remove check of ibm,smt-snooze-delay OF property powerpc/kdump: Fix race in kdump shutdown powerpc/kexec: Fix race in kexec shutdown powerpc/kexec: Speedup kexec hash PTE tear down powerpc/pseries: Add hcall to read 4 ptes at a time in real mode powerpc: Use more accurate limit for first segment memory allocations powerpc/kdump: Use chip->shutdown to disable IRQs powerpc/kdump: CPUs assume the context of the oopsing CPU powerpc/crashdump: Do not fail on NULL pointer dereferencing powerpc/eeh: Fix oops when probing in early boot powerpc/pci: Check devices status property when scanning OF tree powerpc/vio: Switch VIO Bus PM to use generic helpers powerpc: Avoid bad relocations in iSeries code powerpc: Use common cpu_die (fixes SMP+SUSPEND build) ...
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6由 Linus Torvalds 提交于
* 'drm-for-2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (207 commits) drm/radeon/kms/pm/r600: select the mid clock mode for single head low profile drm/radeon: fix power supply kconfig interaction. drm/radeon/kms: record object that have been list reserved drm/radeon: AGP memory is only I/O if the aperture can be mapped by the CPU. drm/radeon/kms: don't default display priority to high on rs4xx drm/edid: fix typo in 1600x1200@75 mode drm/nouveau: fix i2c-related init table handlers drm/nouveau: support init table i2c device identifier 0x81 drm/nouveau: ensure we've parsed i2c table entry for INIT_*I2C* handlers drm/nouveau: display error message for any failed init table opcode drm/nouveau: fix init table handlers to return proper error codes drm/nv50: support fractional feedback divider on newer chips drm/nv50: fix monitor detection on certain chipsets drm/nv50: store full dcb i2c entry from vbios drm/nv50: fix suspend/resume with DP outputs drm/nv50: output calculated crtc pll when debugging on drm/nouveau: dump pll limits entries when debugging is on drm/nouveau: bios parser fixes for eDP boards drm/nouveau: fix a nouveau_bo dereference after it's been destroyed drm/nv40: remove some completed ctxprog TODOs ...
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由 Linus Torvalds 提交于
Merge branch 'dbg-early-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb * 'dbg-early-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: echi-dbgp: Add kernel debugger support for the usb debug port earlyprintk,vga,kdb: Fix \b and \r for earlyprintk=vga with kdb kgdboc: Add ekgdboc for early use of the kernel debugger x86,early dr regs,kgdb: Allow kernel debugger early dr register access x86,kgdb: Implement early hardware breakpoint debugging x86, kgdb, init: Add early and late debug states x86, kgdb: early trap init for early debug
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git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb由 Linus Torvalds 提交于
* 'kdb-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: (25 commits) kdb,debug_core: Allow the debug core to receive a panic notification MAINTAINERS: update kgdb, kdb, and debug_core info debug_core,kdb: Allow the debug core to process a recursive debug entry printk,kdb: capture printk() when in kdb shell kgdboc,kdb: Allow kdb to work on a non open console port kgdb: Add the ability to schedule a breakpoint via a tasklet mips,kgdb: kdb low level trap catch and stack trace powerpc,kgdb: Introduce low level trap catching x86,kgdb: Add low level debug hook kgdb: remove post_primary_code references kgdb,docs: Update the kgdb docs to include kdb kgdboc,keyboard: Keyboard driver for kdb with kgdb kgdb: gdb "monitor" -> kdb passthrough sparc,sunzilog: Add console polling support for sunzilog serial driver sh,sh-sci: Use NO_POLL_CHAR in the SCIF polled console code kgdb,8250,pl011: Return immediately from console poll kgdb: core changes to support kdb kdb: core for kgdb back end (2 of 2) kdb: core for kgdb back end (1 of 2) kgdb,blackfin: Add in kgdb_arch_set_pc for blackfin ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (59 commits) HID: fix up 'EMBEDDED' mess in Kconfig HID: roccat: cleanup preprocessor macros HID: roccat: refactor special event handling HID: roccat: fix special button support HID: roccat: Correctly mark init and exit functions HID: hidraw: Use Interrupt Endpoint for OUT Transfers if Available HID: hid-samsung: remove redundant key mappings HID: add omitted hid-zydacron.c file HID: hid-samsung: add support for Creative Desktop Wireless 6000 HID: picolcd: Eliminate use after free HID: Zydacron Remote Control driver HID: Use kmemdup HID: magicmouse: fix input registration HID: make Prodikeys driver standalone config option HID: Prodikeys PC-MIDI HID Driver HID: hidraw: fix indentation HID: ntrig: add filtering module parameters HID: ntrig: add sysfs access to filter parameters HID: ntrig: add sensitivity and responsiveness support HID: add multi-input quirk for eGalax Touchcontroller ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6由 Linus Torvalds 提交于
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: (31 commits) dquot: Detect partial write error to quota file in write_blk() and add printk_ratelimit for quota error messages ocfs2: Fix lock inversion in quotas during umount ocfs2: Use __dquot_transfer to avoid lock inversion ocfs2: Fix NULL pointer deref when writing local dquot ocfs2: Fix estimate of credits needed for quota allocation ocfs2: Fix quota locking ocfs2: Avoid unnecessary block mapping when refreshing quota info ocfs2: Do not map blocks from local quota file on each write quota: Refactor dquot_transfer code so that OCFS2 can pass in its references quota: unify quota init condition in setattr quota: remove sb_has_quota_active in get/set_info quota: unify ->set_dqblk quota: unify ->get_dqblk ext3: make barrier options consistent with ext4 quota: Make quota stat accounting lockless. suppress warning: "quotatypes" defined but not used ext3: Fix waiting on transaction during fsync jbd: Provide function to check whether transaction will issue data barrier ufs: add ufs speciffic ->setattr call BKL: Remove BKL from ext2 filesystem ...
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由 Linus Torvalds 提交于
Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (113 commits) omap4: Add support for i2c init omap: Fix i2c platform init code for omap4 OMAP2 clock: fix recursive spinlock attempt when CONFIG_CPU_FREQ=y OMAP powerdomain, hwmod, omap_device: add some credits OMAP4 powerdomain: Support LOWPOWERSTATECHANGE for powerdomains OMAP3 clock: add support for setting the divider for sys_clkout2 using clk_set_rate OMAP4 powerdomain: Fix pwrsts flags for ALWAYS ON domains OMAP: timers: Fix clock source names for OMAP4 OMAP4 clock: Support clk_set_parent OMAP4: PRCM: Add offset defines for all CM registers OMAP4: PRCM: Add offset defines for all PRM registers OMAP4: PRCM: Remove duplicate definition of base addresses OMAP4: PRM: Remove MPU internal code name and apply PRCM naming convention OMAP4: CM: Remove non-functional registers in ES1.0 OMAP: hwmod: Replace WARN by pr_warning for clockdomain check OMAP: hwmod: Rename hwmod name for the MPU OMAP: hwmod: Do not exit the iteration if one clock init failed OMAP: hwmod: Replace WARN by pr_warning if clock lookup failed OMAP: hwmod: Remove IS_ERR check with omap_clk_get_by_name return value OMAP: hwmod: Fix wrong pointer iteration in oh->slaves ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging由 Linus Torvalds 提交于
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: i2c-nforce2: Remove redundant error messages on ACPI conflict i2c: Use <linux/io.h> instead of <asm/io.h> i2c-algo-pca: Fix coding style issues i2c-dev: Fix all coding style issues i2c-core: Fix some coding style issues i2c-gpio: Move initialization code to subsys_initcall() i2c-parport: Make template structure const i2c-dev: Remove unnecessary casts at24: Fall back to byte or word reads if needed i2c-stub: Expose the default functionality flags i2c/scx200_acb: Make PCI device ids constant i2c-i801: Fix all checkpatch warnings i2c-i801: All newer devices have all the optional features i2c-i801: Let the user disable selected driver features
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: (25 commits) serial: Tidy REMOTE_DEBUG serial: isicomm: handle running out of slots serial: bfin_sport_uart: Use resource size to fix off-by-one error tty: fix obsolete comment on tty_insert_flip_string_fixed_flag serial: Add driver for the Altera UART serial: Add driver for the Altera JTAG UART serial: timbuart: make sure last byte is sent when port is closed serial: two branches the same in timbuart_set_mctrl() serial: uartlite: move from byte accesses to word accesses tty: n_gsm: depends on NET tty: n_gsm line discipline serial: TTY: new ldiscs for staging serial: bfin_sport_uart: drop redundant cpu depends serial: bfin_sport_uart: drop the experimental markings serial: bfin_sport_uart: pull in bfin_sport.h for SPORT defines serial: bfin_sport_uart: only enable SPORT TX if data is to be sent serial: bfin_sport_uart: drop useless status masks serial: bfin_sport_uart: zero sport_uart_port if allocated dynamically serial: bfin_sport_uart: protect changes to uart_port serial: bfin_sport_uart: add support for CTS/RTS via GPIOs ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (38 commits) net: Expose all network devices in a namespaces in sysfs hotplug: netns aware uevent_helper kobj: Send hotplug events in the proper namespace. netlink: Implment netlink_broadcast_filtered net/sysfs: Fix the bitrot in network device kobject namespace support netns: Teach network device kobjects which namespace they are in. kobject: Send hotplug events in all network namespaces driver-core: fix Typo in drivers/base/core.c for CONFIG_MODULE pci: check caps from sysfs file open to read device dependent config space sysfs: add struct file* to bin_attr callbacks sysfs: Remove usage of S_BIAS to avoid merge conflict with the vfs tree sysfs: Don't use enums in inline function declaration. sysfs-namespaces: add a high-level Documentation file sysfs: Comment sysfs directory tagging logic driver core: Implement ns directory support for device classes. sysfs: Implement sysfs_delete_link sysfs: Add support for tagged directories with untagged members. sysfs: Implement sysfs tagged directory support. kobj: Add basic infrastructure for dealing with namespaces. sysfs: Remove double free sysfs_get_sb ...
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由 Randy Dunlap 提交于
Fix kernel-doc fatal error: /** beginning a non-kernel-doc comment block: (That alone does not kill kernel-doc, but the 'enum' was totally confusing to it.) Error(/lnx/src/TMP/linux-2.6.34-git6//include/linux/interrupt.h:88): cannot understand prototype: 'enum ' make[2]: *** [Documentation/DocBook/genericirq.xml] Error 1 Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jiaying Zhang 提交于
dquot: Detect partial write error to quota file in write_blk() and add printk_ratelimit for quota error messages This patch changes quota_tree.c:write_blk() to detect error caused by partial write to quota file and add a macro to limit control printed quota error messages so we won't fill up dmesg with a corrupted quota file. Signed-off-by: NJiaying Zhang <jiayingz@google.com> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Jan Kara 提交于
We cannot cancel delayed work from ocfs2_local_free_info because that is called with dqonoff_mutex held and the work it cancels requires dqonoff_mutex to finish. Cancel the work before acquiring dqonoff_mutex. Acked-by: NJoel Becker <Joel.Becker@oracle.com> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Jan Kara 提交于
dquot_transfer() acquires own references to dquots via dqget(). Thus it waits for dq_lock which creates a lock inversion because dq_lock ranks above transaction start but transaction is already started in ocfs2_setattr(). Fix the problem by passing own references directly to __dquot_transfer. Acked-by: NJoel Becker <Joel.Becker@oracle.com> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Jan Kara 提交于
commit_dqblk() can write quota info to global file. That is actually a bad thing to do because if we are just modifying local quota file, we are not prepared (do not hold proper locks, do not have transaction credits) to do a modification of the global quota file. So do not use commit_dqblk() and instead call our writing function directly. Acked-by: NJoel Becker <Joel.Becker@oracle.com> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Jan Kara 提交于
We were missing reservation of a journal credit for modification of quota file inode when creating new dquot structure in the global quota file. Acked-by: NJoel Becker <Joel.Becker@oracle.com> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Jan Kara 提交于
OCFS2 had three issues with quota locking: a) When reading dquot from global quota file, we started a transaction while holding dqio_mutex which is prone to deadlocks because other paths do it the other way around b) During ocfs2_sync_dquot we were not protected against concurrent writers on the same node. Because we first copy data to local buffer, a race could happen resulting in old data being written to global quota file and thus causing quota inconsistency after a crash. c) ip_alloc_sem of quota files was acquired while a transaction is started in ocfs2_quota_write which can deadlock because we first get ip_alloc_sem and then start a transaction when extending quota files. We fix the problem a) by pulling all necessary code to ocfs2_acquire_dquot and ocfs2_release_dquot. Thus we no longer depend on generic dquot_acquire to do the locking and can force proper lock ordering. Problems b) and c) are fixed by locking i_mutex and ip_alloc_sem of global quota file in ocfs2_lock_global_qf and removing ip_alloc_sem from ocfs2_quota_read and ocfs2_quota_write. Acked-by: NJoel Becker <Joel.Becker@oracle.com> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Jan Kara 提交于
The position of global quota file info does not change. So we do not have to do logical -> physical block translation every time we reread it from disk. Thus we can also avoid taking ip_alloc_sem. Acked-by: NJoel Becker <Joel.Becker@oracle.com> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Jan Kara 提交于
There is no need to map offset of local dquot structure to on disk block in each quota write. It is enough to map it just once and store the physical block number in quota structure in memory. Moreover this simplifies locking as we do not have to take ip_alloc_sem from quota write path. Acked-by: NJoel Becker <Joel.Becker@oracle.com> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Jan Kara 提交于
Currently, __dquot_transfer() acquires its own references of dquot structures that will be put into inode. But for OCFS2, this creates a lock inversion between dq_lock (waited on in dqget) and transaction start (started in ocfs2_setattr). Currently, deadlock is impossible because dq_lock is acquired only during dquot_acquire and dquot_release and we already hold a reference to dquot structures in ocfs2_setattr so neither of these functions can be called while we call dquot_transfer. But this is rather subtle and it is hard to teach lockdep about it. So provide __dquot_transfer function that can be passed dquot references directly. OCFS2 can then pass acquired dquot references directly to __dquot_transfer with proper locking. Signed-off-by: NJan Kara <jack@suse.cz>
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由 Dmitry Monakhov 提交于
Quota must being initialized if size or uid/git changes requested. But initialization performed in two different places: in case of i_size file system is responsible for dquot init , but in case of uid/gid init will be called internally in dquot_transfer(). This ambiguity makes code harder to understand. Let's move this logic to one common helper function. Signed-off-by: NDmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Christoph Hellwig 提交于
The methods already do these checks, so remove them in the quotactl implementation to allow non-VFS quota implementations to also support these calls. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Christoph Hellwig 提交于
Pass the larger struct fs_disk_quota to the ->set_dqblk operation so that the Q_SETQUOTA and Q_XSETQUOTA operations can be implemented with a single filesystem operation and we can retire the ->set_xquota operation. The additional information (RT-subvolume accounting and warn counts) are left zero for the VFS quota implementation. Add new fieldmask values for setting the numer of blocks and inodes values which is required for the VFS quota, but wasn't for XFS. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Christoph Hellwig 提交于
Pass the larger struct fs_disk_quota to the ->get_dqblk operation so that the Q_GETQUOTA and Q_XGETQUOTA operations can be implemented with a single filesystem operation and we can retire the ->get_xquota operation. The additional information (RT-subvolume accounting and warn counts) are left zero for the VFS quota implementation. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Eric Sandeen 提交于
ext4 was updated to accept barrier/nobarrier mount options in addition to the older barrier=0/1. The barrier story is complex enough, we should help people by making the options the same at least, even if the defaults are different. This patch allows the barrier/nobarrier mount options for ext3, while keeping nobarrier the default. It also unconditionally displays barrier status in show_options, and prints a message at mount time if barriers are not enabled, just as ext4 does. Signed-off-by: NEric Sandeen <sandeen@redhat.com> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Dmitry Monakhov 提交于
Quota stats is mostly writable data structure. Let's alloc percpu bucket for each value. NOTE: dqstats_read() function is racy against dqstats_{inc,dec} and may return inconsistent value. But this is ok since absolute accuracy is not required. Signed-off-by: NDmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Sergey Senozhatsky 提交于
Suppress compilation warning: "quotatypes" defined but not used. quotatypes is used only when CONFIG_QUOTA_DEBUG or CONFIG_PRINT_QUOTA_WARNING is/are defined. Signed-off-by: NSergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Jan Kara 提交于
log_start_commit() returns 1 only when it started a transaction commit. Thus in case transaction commit is already running, we fail to wait for the commit to finish. Fix the issue by always waiting for the commit regardless of the log_start_commit return value. Signed-off-by: NJan Kara <jack@suse.cz>
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由 Jan Kara 提交于
Provide a function which returns whether a transaction with given tid will send a barrier to the filesystem device. The function will be used by ext3 to detect whether fsync needs to send a separate barrier or not. Signed-off-by: NJan Kara <jack@suse.cz>
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