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* ceph: support v2 reconnect encodingSage Weil2010-08-032-13/+50
| | | | | | | Encode either old or v2 encoding of client_reconnect message, depending on whether the peer has the FLOCK feature bit. Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: support v2 client_caps encodingSage Weil2010-08-031-2/+19
| | | | | | Add support for v2 encoding of MClientCaps, which includes a flock blob. Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: move AES iv definition to shared headerSage Weil2010-08-032-1/+3
| | | | Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: fix decoding of pool snap infoSage Weil2010-08-021-4/+26
| | | | | | | | The pool info contains a vector for snap_info_t, not snap ids. This fixes the broken decoding, which would declare teh update corrupt when a pool snapshot was created. Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: make ->sync_fs not wait if wait==0Sage Weil2010-08-021-4/+13
| | | | | | | The ->sync_fs() super op only needs to wait if wait is true. Otherwise, just get some dirty cap writeback started. Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: warn on missing snap realmSage Weil2010-08-021-0/+1
| | | | | | | Well, this Shouldn't Happen, so it would be helpful to know the caller when it does. Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: print useful error message when crush rule not foundSage Weil2010-08-021-2/+3
| | | | | | Include the crush_ruleset in the error message. Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: use %pU to print uuid (fsid)Sage Weil2010-08-023-15/+8Star
| | | | Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: sync header defs with server codeSage Weil2010-08-023-0/+11
| | | | | | Define ROLLBACK op, IFLOCK inode lock (for advisory file locking). Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: clean up header guardsSage Weil2010-08-028-16/+16
| | | | Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: strip misleading/obsolete version, feature infoSage Weil2010-08-021-26/+4Star
| | | | Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: specify supported features in super.hSage Weil2010-08-022-3/+9
| | | | | | | | Specify the supported/required feature bits in super.h client code instead of using the definitions from the shared kernel/userspace headers (which will go away shortly). Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: clean up fsid mount optionSage Weil2010-08-021-13/+39
| | | | | | | Specify the fsid mount option in hex, not via the major/minor u64 hackery we had before. Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: remove unused 'monport' mount optionSage Weil2010-08-021-2/+0Star
| | | | Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: handle ESTALE properly; on receipt send to authority if it wasn'tGreg Farnum2010-08-022-8/+35
| | | | | Signed-off-by: Greg Farnum <gregf@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: add ceph_get_cap_for_mds function.Greg Farnum2010-08-022-0/+12
| | | | | Signed-off-by: Greg Farnum <gregf@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: connect to export targets on cap exportSage Weil2010-08-023-2/+23
| | | | | | | When we get a cap EXPORT message, make sure we are connected to all export targets to ensure we can handle the matching IMPORT. Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: connect to export targets if mds is laggySage Weil2010-08-021-0/+15
| | | | | | | | If an MDS we are talking to may have failed, we need to open sessions to its potential export targets to ensure that any in-progress migration that may have involved some of our caps is properly handled. Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: introduce helper to connect to mds export targetsSage Weil2010-08-021-0/+37
| | | | | | | There are a few cases where we need to open sessions with a given mds's potential export targets. Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: only set num_pages in calc_layoutSage Weil2010-08-021-3/+0Star
| | | | | | Setting it elsewhere is unnecessary and more fragile. Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: do caps accounting per mds_clientYehuda Sadeh2010-08-025-115/+131
| | | | | | | | | Caps related accounting is now being done per mds client instead of just being global. This prepares ground work for a later revision of the caps preallocated reservation list. Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: track laggy state of mds from mdsmapSage Weil2010-08-023-2/+16
| | | | Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: code cleanupYehuda Sadeh2010-08-0213-49/+46Star
| | | | | | | Mainly fixing minor issues reported by sparse. Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: skip if no auth cap in flush_snapsSage Weil2010-08-021-7/+12
| | | | | | | | If we have a capsnap but no auth cap (e.g. because it is migrating to another mds), bail out and do nothing for now. Do NOT remove the capsnap from the flush list. Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: simplify caps revocation, fix for multimdsSage Weil2010-08-021-12/+18
| | | | | | | | | | | | | The caps revocation should either initiate writeback, invalidateion, or call check_caps to ack or do the dirty work. The primary question is whether we can get away with only checking the auth cap or whether all caps need to be checked. The old code was doing...something else. At the very least, revocations from non-auth MDSs could break by triggering the "check auth cap only" case. Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: simplify add_cap_releasesSage Weil2010-08-021-16/+19
| | | | | | No functional change, aside from more useful debug output. Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: drop unused argumentSage Weil2010-08-023-9/+6Star
| | | | Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: perform lazy reads when file mode and caps permitSage Weil2010-08-024-13/+22
| | | | | | | | | If the file mode is marked as "lazy," perform cached/buffered reads when the caps permit it. Adjust the rdcache_gen and invalidation logic accordingly so that we manage our cache based on the FILE_CACHE -or- FILE_LAZYIO cap bits. Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: perform lazy writes when file mode and caps permitSage Weil2010-08-022-8/+11
| | | | | | | If we have marked a file as "lazy" (using the ceph ioctl), perform buffered writes when the MDS caps allow it. Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: add LAZYIO ioctl to mark a file description for lazy consistencySage Weil2010-08-022-0/+26
| | | | | | | | Allow an application to mark a file descriptor for lazy file consistency semantics, allowing buffered reads and writes when multiple clients are accessing the same file. Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: request FILE_LAZYIO cap when LAZY file mode is setSage Weil2010-08-022-27/+26Star
| | | | | | | Also clean up the file flags -> file mode -> wanted caps functions while we're at it. This resyncs this file with userspace. Signed-off-by: Sage Weil <sage@newdream.net>
* Linux 2.6.35Linus Torvalds2010-08-021-1/+1
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* NFS: Fix a typo in include/linux/nfs_fs.hTrond Myklebust2010-08-022-5/+6
| | | | | | | | | | | | nfs_commit_inode() needs to be defined irrespectively of whether or not we are supporting NFSv3 and NFSv4. Allow the compiler to optimise away code in the NFSv2-only case by converting it into an inlined stub function. Reported-and-tested-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2010-07-3111-49/+75
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/home/rmk/linux-2.6-arm: cyber2000fb: fix console in truecolor modes cyber2000fb: fix machine hang on module load SA1111: Eliminate use after free ARM: Fix Versatile/Realview/VExpress MMC card detection sense ARM: 6279/1: highmem: fix SMP preemption bug in kmap_high_l1_vipt ARM: Add barriers to io{read,write}{8,16,32} accessors as well ARM: 6273/1: Add barriers to the I/O accessors if ARM_DMA_MEM_BUFFERABLE ARM: 6272/1: Convert L2x0 to use the IO relaxed operations ARM: 6271/1: Introduce *_relaxed() I/O accessors ARM: 6275/1: ux500: don't use writeb() in uncompress.h ARM: 6270/1: clean files in arch/arm/boot/compressed/ ARM: Fix csum_partial_copy_from_user()
| * cyber2000fb: fix console in truecolor modesOndrej Zary2010-07-311-0/+1
| | | | | | | | | | | | | | | | | | Return value was not set to 0 in setcolreg() with truecolor modes. This causes fb_set_cmap() to abort after first color, resulting in blank palette - and blank console in 24bpp and 32bpp modes. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * cyber2000fb: fix machine hang on module loadOndrej Zary2010-07-311-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | I was testing two CyberPro 2000 based PCI cards on x86 and the machine always hanged completely when the cyber2000fb module was loaded. It seems that the card hangs when some registers are accessed too quickly after writing RAMDAC control register. With this patch, both card work. Add delay after RAMDAC control register write to prevent hangs on module load. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * SA1111: Eliminate use after freeJulia Lawall2010-07-311-3/+2Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | __sa1111_remove always frees its argument, so the subsequent reference to sachip->saved_state represents a use after free. __sa1111_remove does not appear to use the saved_state field, so the patch simply frees it first. A simplified version of the semantic patch that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression E,E2; @@ __sa1111_remove(E) ... ( E = E2 | * E ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: Fix Versatile/Realview/VExpress MMC card detection senseRussell King2010-07-313-4/+8
| | | | | | | | | | | | | | | | | | The MMC card detection sense has become really confused with negations at various levels, leading to some platforms not detecting inserted cards. Fix this by converting everything to positive logic throughout, thereby getting rid of these negations. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: 6279/1: highmem: fix SMP preemption bug in kmap_high_l1_viptGary King2010-07-311-5/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | smp_processor_id() must not be called from a preemptible context (this is checked by CONFIG_DEBUG_PREEMPT). kmap_high_l1_vipt() was doing so. This lead to a problem where the wrong per_cpu kmap_high_l1_vipt_depth could be incremented, causing a BUG_ON(*depth <= 0); in kunmap_high_l1_vipt(). The solution is to move the call to smp_processor_id() after the call to preempt_disable(). Originally by: Andrew Howe <ahowe@nvidia.com> Signed-off-by: Gary King <gking@nvidia.com> Acked-by: Nicolas Pitre <nico.as.pitre@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: Add barriers to io{read,write}{8,16,32} accessors as wellRussell King2010-07-291-20/+18Star
| | | | | | | | | | | | | | | | | | The ioread/iowrite accessors also need barriers as they're used in place of readl/writel et.al. in portable drivers. Create __iormb() and __iowmb() which are conditionally defined to be barriers dependent on ARM_DMA_MEM_BUFFERABLE, and always use these macros in the accessors. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: 6273/1: Add barriers to the I/O accessors if ARM_DMA_MEM_BUFFERABLECatalin Marinas2010-07-291-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the coherent DMA buffers are mapped as Normal Non-cacheable (ARM_DMA_MEM_BUFFERABLE enabled), buffer accesses are no longer ordered with Device memory accesses causing failures in device drivers that do not use the mandatory memory barriers before starting a DMA transfer. LKML discussions led to the conclusion that such barriers have to be added to the I/O accessors: http://thread.gmane.org/gmane.linux.kernel/683509/focus=686153 http://thread.gmane.org/gmane.linux.ide/46414 http://thread.gmane.org/gmane.linux.kernel.cross-arch/5250 This patch introduces a wmb() barrier to the write*() I/O accessors to handle the situations where Normal Non-cacheable writes are still in the processor (or L2 cache controller) write buffer before a DMA transfer command is issued. For the read*() accessors, a rmb() is introduced after the I/O to avoid speculative loads where the driver polls for a DMA transfer ready bit. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: 6272/1: Convert L2x0 to use the IO relaxed operationsCatalin Marinas2010-07-291-13/+13
| | | | | | | | | | | | | | | | | | | | | | This patch is in preparation for a subsequent patch which adds barriers to the I/O accessors. Since the mandatory barriers may do an L2 cache sync, this patch avoids a recursive call into l2x0_cache_sync() via the write*() accessors and wmb() and a call into l2x0_cache_sync() with the l2x0_lock held. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: 6271/1: Introduce *_relaxed() I/O accessorsCatalin Marinas2010-07-291-12/+17
| | | | | | | | | | | | | | | | | | | | | | | | This patch introduces readl*_relaxed()/write*_relaxed() as the main I/O accessors (when __mem_pci is defined). The standard read*()/write*() macros are now based on the relaxed accessors. This patch is in preparation for a subsequent patch which adds barriers to the I/O accessors. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: 6275/1: ux500: don't use writeb() in uncompress.hRabin Vincent2010-07-291-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't use writeb() in uncompress.h, to avoid the following build errors when the "Add barriers to the I/O accessors" series is applied. Use __raw_writeb() instead. arch/arm/boot/compressed/misc.o: In function `putc': arch/arm/mach-ux500/include/mach/uncompress.h:41: undefined reference to `outer_cache' Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: 6270/1: clean files in arch/arm/boot/compressed/Magnus Damm2010-07-291-0/+3
| | | | | | | | | | | | | | | | Update the compressed boot Makefile for ARM to remove files during clean. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: Fix csum_partial_copy_from_user()Russell King2010-07-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | Using the parent functions frame pointer to access our arguments is completely wrong, whether or not we're building with frame pointers or not. What we should be using is the stack pointer to get at the word above the registers we stacked ourselves. Reported-by: Bosko Radivojevic <bosko.radivojevic@gmail.com> Tested-by: Bosko Radivojevic <bosko.radivojevic@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6Linus Torvalds2010-07-314-11/+32
|\ \ | | | | | | | | | | | | | | | | | | * 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: NFS: Ensure that writepage respects the nonblock flag NFS: kswapd must not block in nfs_release_page nfs: include space for the NUL in root path
| * | NFS: Ensure that writepage respects the nonblock flagTrond Myklebust2010-07-301-6/+17
| | | | | | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFS: kswapd must not block in nfs_release_pageTrond Myklebust2010-07-303-4/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | See https://bugzilla.kernel.org/show_bug.cgi?id=16056 If other processes are blocked waiting for kswapd to free up some memory so that they can make progress, then we cannot allow kswapd to block on those processes. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@kernel.org
| * | nfs: include space for the NUL in root pathDan Carpenter2010-07-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In root_nfs_name() it does the following: if (strlen(buf) + strlen(cp) > NFS_MAXPATHLEN) { printk(KERN_ERR "Root-NFS: Pathname for remote directory too long.\n"); return -1; } sprintf(nfs_export_path, buf, cp); In the original code if (strlen(buf) + strlen(cp) == NFS_MAXPATHLEN) then the sprintf() would lead to an overflow. Generally the rest of the code assumes that the path can have NFS_MAXPATHLEN (1024) characters and a NUL terminator so the fix is to add space to the nfs_export_path[] buffer. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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