- 12 Apr, 2012 2 commits
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majianpeng authored
If r1bio->sectors % 8 != 0,then the memcmp and a later memcpy will omit the last bio_vec. This is suitable for any stable kernel since 3.1 when bad-block management was introduced. Cc: stable@vger.kernel.org Signed-off-by: majianpeng <majianpeng@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de>
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Andrei Warkentin authored
bitmap_new_disk_sb() would still create V3 bitmap superblock with host-endian layout. Perhaps I'm confused, but shouldn't bitmap_new_disk_sb() be creating a V4 bitmap superblock instead, that is portable, as per comment in bitmap.h? Signed-off-by: Andrei Warkentin <andrey.warkentin@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de>
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- 03 Apr, 2012 5 commits
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NeilBrown authored
When comparing two pages read from different legs of a mirror, only compare the bytes that were read, not the whole page. In most cases we read a whole page, but in some cases with bad blocks or odd sizes devices we might read fewer than that. This bug has been present "forever" but at worst it might cause a report of two many mismatches and generate a little bit extra resync IO, so there is no need to back-port to -stable kernels. Reported-by: majianpeng <majianpeng@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de>
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majianpeng authored
When create a raid5 using assume-clean and echo check or repair to sync_action.Then component disks did not operated IO but the raid check/resync faster than normal. Because the judgement in function analyse_stripe(): if (do_recovery || sh->sector >= conf->mddev->recovery_cp) s->syncing = 1; else s->replacing = 1; When check or repair,the recovery_cp == MaxSectore,so syncing equal zero not one. This bug was introduced by commit 9a3e1101 md/raid5: detect and handle replacements during recovery. so this patch is suitable for 3.3-stable. Cc: stable@vger.kernel.org Signed-off-by: majianpeng <majianpeng@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de>
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majianpeng authored
Because rde->nr_pending > 0,so can not remove this disk. And in any case, we aren't holding rcu_read_lock() Signed-off-by: majianpeng <majianpeng@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de>
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Jes Sorensen authored
raid1 arrays do not have the notion of chunk size. Calculate the largest chunk sector size we can use to avoid a divide by zero OOPS when aligning the size of the new array to the chunk size. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: NeilBrown <neilb@suse.de>
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NeilBrown authored
1/ We can only treat a known-bad-block like a read-error if we have the data that belongs in that block. So fix that test. 2/ If we cannot recovery a stripe due to insufficient data, don't tell "md_done_sync" that the sync failed unless we really did fail something. If we successfully record bad blocks, that is success. Reported-by: "majianpeng" <majianpeng@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de>
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- 01 Apr, 2012 3 commits
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majianpeng authored
Signed-off-by: majianpeng <majianpeng@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de>
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majianpeng authored
Signed-off-by: majianpeng <majianpeng@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de>
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majianpeng authored
Signed-off-by: majianpeng <majianpeng@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de>
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- 31 Mar, 2012 30 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/amit/virtio-consoleLinus Torvalds authored
Pull virtio S3 support patches from Amit Shah: "Turns out S3 is not different from S4 for virtio devices: the device is assumed to be reset, so the host and guest state are to be assumed to be out of sync upon resume. We handle the S4 case with exactly the same scenario, so just point the suspend/resume routines to the freeze/restore ones. Once that is done, we also use the PM API's macro to initialise the sleep functions. A couple of cleanups are included: there's no need for special thaw processing in the balloon driver, so that's addressed in patches 1 and 2. Testing: both S3 and S4 support have been tested using these patches using a similar method used earlier during S4 patch development: a guest is started with virtio-blk as the only disk, a virtio network card, a virtio-serial port and a virtio balloon device. Ping from guest to host, dd /dev/zero to a file on the disk, and IO from the host on the virtio-serial port, all at once, while exercising S4 and S3 (separately) were tested. They all continue to work fine after resume. virtio balloon values too were tested by inflating and deflating the balloon." Pulling from Amit, since Rusty is off getting married (and presumably shaving people). * 's3-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/amit/virtio-console: virtio-pci: switch to PM ops macro to initialise PM functions virtio-pci: S3 support virtio-pci: drop restore_common() virtio: drop thaw PM operation virtio: balloon: Allow stats update after restore from S4
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull second try at vfs part d#2 from Al Viro: "Miklos' first series (with do_lookup() rewrite split into edible chunks) + assorted bits and pieces. The 'untangling of do_lookup()' series is is a splitup of what used to be a monolithic patch from Miklos, so this series is basically "how do I convince myself that his patch is correct (or find a hole in it)". No holes found and I like the resulting cleanup, so in it went..." Changes from try 1: Fix a boot problem with selinux, and commit messages prettied up a bit. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (24 commits) vfs: fix out-of-date dentry_unhash() comment vfs: split __lookup_hash untangling do_lookup() - take __lookup_hash()-calling case out of line. untangling do_lookup() - switch to calling __lookup_hash() untangling do_lookup() - merge d_alloc_and_lookup() callers untangling do_lookup() - merge failure exits in !dentry case untangling do_lookup() - massage !dentry case towards __lookup_hash() untangling do_lookup() - get rid of need_reval in !dentry case untangling do_lookup() - eliminate a loop. untangling do_lookup() - expand the area under ->i_mutex untangling do_lookup() - isolate !dentry stuff from the rest of it. vfs: move MAY_EXEC check from __lookup_hash() vfs: don't revalidate just looked up dentry vfs: fix d_need_lookup/d_revalidate order in do_lookup ext3: move headers to fs/ext3/ migrate ext2_fs.h guts to fs/ext2/ext2.h new helper: ext2_image_size() get rid of pointless includes of ext2_fs.h ext2: No longer export ext2_fs.h to user space mtdchar: kill persistently held vfsmount ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler fixes from Ingo Molnar. * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched: Fix incorrect usage of for_each_cpu_mask() in select_fallback_rq() sched: Fix __schedule_bug() output when called from an interrupt sched/arch: Introduce the finish_arch_post_lock_switch() scheduler callback
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf updates and fixes from Ingo Molnar: "It's mostly fixes, but there's also two late items: - preliminary GTK GUI support for perf report - PMU raw event format descriptors in sysfs, to be parsed by tooling The raw event format in sysfs is a new ABI. For example for the 'CPU' PMU we have: aldebaran:~> ll /sys/bus/event_source/devices/cpu/format/* -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/any -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/cmask -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/edge -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/event -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/inv -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/offcore_rsp -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/pc -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/umask those lists of fields contain a specific format: aldebaran:~> cat /sys/bus/event_source/devices/cpu/format/offcore_rsp config1:0-63 So, those who wish to specify raw events can now use the following event format: -e cpu/cmask=1,event=2,umask=3 Most people will not want to specify any events (let alone raw events), they'll just use whatever default event the tools use. But for more obscure PMU events that have no cross-architecture generic events the above syntax is more usable and a bit more structured than specifying hex numbers." * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits) perf tools: Remove auto-generated bison/flex files perf annotate: Fix off by one symbol hist size allocation and hit accounting perf tools: Add missing ref-cycles event back to event parser perf annotate: addr2line wants addresses in same format as objdump perf probe: Finder fails to resolve function name to address tracing: Fix ent_size in trace output perf symbols: Handle NULL dso in dso__name_len perf symbols: Do not include libgen.h perf tools: Fix bug in raw sample parsing perf tools: Fix display of first level of callchains perf tools: Switch module.h into export.h perf: Move mmap page data_head offset assertion out of header perf: Fix mmap_page capabilities and docs perf diff: Fix to work with new hists design perf tools: Fix modifier to be applied on correct events perf tools: Fix various casting issues for 32 bits perf tools: Simplify event_read_id exit path tracing: Fix ftrace stack trace entries tracing: Move the tracing_on/off() declarations into CONFIG_TRACING perf report: Add a simple GTK2-based 'perf report' browser ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6Linus Torvalds authored
Pull PARISC misc updates from James Bottomley: "This is a couple of minor updates (fixing lws futex locking and removing some obsolete cpu_*_map calls)." * tag 'parisc-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6: [PARISC] remove references to cpu_*_map. [PARISC] futex: Use same lock set as lws calls
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds authored
Pull SCSI updates from James Bottomley: "This is primarily another round of driver updates (lpfc, bfa, fcoe, ipr) plus a new ufshcd driver. There shouldn't be anything controversial in here (The final deletion of scsi proc_ops which caused some build breakage has been held over until the next merge window to give us more time to stabilise it). I'm afraid, with me moving continents at exactly the wrong time, anything submitted after the merge window opened has been held over to the next merge window." * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (63 commits) [SCSI] ipr: Driver version 2.5.3 [SCSI] ipr: Increase alignment boundary of command blocks [SCSI] ipr: Increase max concurrent oustanding commands [SCSI] ipr: Remove unnecessary memory barriers [SCSI] ipr: Remove unnecessary interrupt clearing on new adapters [SCSI] ipr: Fix target id allocation re-use problem [SCSI] atp870u, mpt2sas, qla4xxx use pci_dev->revision [SCSI] fcoe: Drop the rtnl_mutex before calling fcoe_ctlr_link_up [SCSI] bfa: Update the driver version to 3.0.23.0 [SCSI] bfa: BSG and User interface fixes. [SCSI] bfa: Fix to avoid vport delete hang on request queue full scenario. [SCSI] bfa: Move service parameter programming logic into firmware. [SCSI] bfa: Revised Fabric Assigned Address(FAA) feature implementation. [SCSI] bfa: Flash controller IOC pll init fixes. [SCSI] bfa: Serialize the IOC hw semaphore unlock logic. [SCSI] bfa: Modify ISR to process pending completions [SCSI] bfa: Add fc host issue lip support [SCSI] mpt2sas: remove extraneous sas_log_info messages [SCSI] libfc: fcoe_transport_create fails in single-CPU environment [SCSI] fcoe: reduce contention for fcoe_rx_list lock [v2] ...
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J. Bruce Fields authored
64252c75 "vfs: remove dget() from dentry_unhash()" changed the implementation but not the comment. Cc: Sage Weil <sage@newdream.net> Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Miklos Szeredi authored
Split __lookup_hash into two component functions: lookup_dcache - tries cached lookup, returns whether real lookup is needed lookup_real - calls i_op->lookup This eliminates code duplication between d_alloc_and_lookup() and d_inode_lookup(). Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
now we have __lookup_hash() open-coded if !dentry case; just call the damn thing instead... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
Reorder if-else cases for starters... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
Everything arriving into if (!dentry) will have need_reval = 1. Indeed, the only way to get there with need_reval reset to 0 would be via if (unlikely(d_need_lookup(dentry))) goto unlazy; if (unlikely(dentry->d_flags & DCACHE_OP_REVALIDATE)) { status = d_revalidate(dentry, nd); if (unlikely(status <= 0)) { if (status != -ECHILD) need_reval = 0; goto unlazy; ... unlazy: /* no assignments to dentry */ if (dentry && unlikely(d_need_lookup(dentry))) { dput(dentry); dentry = NULL; } and if d_need_lookup() had already been false the first time around, it will remain false on the second call as well. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
d_lookup() *will* fail after successful d_invalidate(), if we are holding i_mutex all along. IOW, we don't need to jump back to l: - we know what path will be taken there and can do that (i.e. d_alloc_and_lookup()) directly. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
keep holding ->i_mutex over revalidation parts Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
Duplicate the revalidation-related parts into if (!dentry) branch. Next step will be to pull them under i_mutex. This and the next 8 commits are more or less a splitup of patch by Miklos; folks, when you are working with something that convoluted, carve your patches up into easily reviewed steps, especially when a lot of codepaths involved are rarely hit... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Miklos Szeredi authored
The only caller of __lookup_hash() that needs the exec permission check on parent is lookup_one_len(). All lookup_hash() callers already checked permission in LOOKUP_PARENT walk. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Miklos Szeredi authored
__lookup_hash() calls ->lookup() if the dentry needs lookup and on success revalidates the dentry (all under dir->i_mutex). While this is harmless it doesn't make a lot of sense. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Miklos Szeredi authored
Doing revalidate on a dentry which has not yet been looked up makes no sense. Move the d_need_lookup() check before d_revalidate(). Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
... implemented that way since the next commit will leave it almost alone in ext2_fs.h - most of the file (including struct ext2_super_block) is going to move to fs/ext2/ext2.h. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Thierry Reding authored
Since the on-disk format has been stable for quite some time, users should either use the headers provided by libext2fs or keep a private copy of this header. For the full discussion, see this thread: https://lkml.org/lkml/2012/3/21/516 While at it, this commit removes all __KERNEL__ guards, which are now unnecessary. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Jan Kara <jack@suse.cz> Cc: Ted Ts'o <tytso@mit.edu> Cc: Artem Bityutskiy <dedekind1@gmail.com> Cc: Andreas Dilger <aedilger@gmail.com> Cc: linux-ext4@vger.kernel.org
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Al Viro authored
... and mtdchar_notifier along with it; just have ->drop_inode() that will unconditionally get evict them instead of dances on mtd device removal and use simple_pin_fs() instead of kern_mount() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
move mode-dependent parts to callers, kill unused arguments Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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