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2012-05-28ext4: return ENOMEM when mounts fail due to lack of memoryTheodore Ts'o
This is a port of the ext3 commit: 4569cd1b0d9 Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2012-05-28ext4: remove redundundant "(char *) bh->b_data" castsTheodore Ts'o
The b_data field of the buffer_head is already a char *, so there's no point casting it to a char *. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2012-05-28NFSv4: Add debugging printks to state managerTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-05-28NFSv4: Map NFS4ERR_SHARE_DENIED into an EACCES error instead of EIOTrond Myklebust
If a file OPEN is denied due to a share lock, the resulting NFS4ERR_SHARE_DENIED is currently mapped to the default EIO. This patch adds a more appropriate mapping, and brings Linux into line with what Solaris 10 does. See https://bugzilla.kernel.org/show_bug.cgi?id=43286 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@vger.kernel.org
2012-05-28ext4: disallow hard-linked directory in ext4_lookupAndreas Dilger
A hard-linked directory to its parent can cause the VFS to deadlock, and is a sign of a corrupted file system. So detect this case in ext4_lookup(), before the rmdir() lockup scenario can take place. Signed-off-by: Andreas Dilger <adilger@dilger.ca> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: stable@kernel.org
2012-05-28Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osdLinus Torvalds
Pull exofs updates from Boaz Harrosh: "Just a couple of patches. The first is a BUG fix destined for stable which missed the 3.4-rc7 Kernel. The second is just a fixture addition so exofs is able to be better exported as a cluster file system via pNFS." * 'for-linus' of git://git.open-osd.org/linux-open-osd: exofs: Add SYSFS info for autologin/pNFS export exofs: Fix CRASH on very early IO errors.
2012-05-28ext4: fix potential integer overflow in alloc_flex_gd()Haogang Chen
In alloc_flex_gd(), when flexbg_size is large, kmalloc size would overflow and flex_gd->groups would point to a buffer smaller than expected, causing OOB accesses when it is used. Note that in ext4_resize_fs(), flexbg_size is calculated using sbi->s_log_groups_per_flex, which is read from the disk and only bounded to [1, 31]. The patch returns NULL for too large flexbg_size. Reviewed-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Haogang Chen <haogangchen@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: stable@kernel.org
2012-05-28ext4: remove needs_recovery in ext4_mb_init()Akira Fujita
needs_recovery in ext4_mb_init() is not used, remove it. Signed-off-by: Akira Fujita <a-fujita@rs.jp.ne.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2012-05-28ext4: force ro mount if ext4_setup_super() failsEric Sandeen
If ext4_setup_super() fails i.e. due to a too-high revision, the error is logged in dmesg but the fs is not mounted RO as indicated. Tested by: # mkfs.ext4 -r 4 /dev/sdb6 # mount /dev/sdb6 /mnt/test # dmesg | grep "too high" [164919.759248] EXT4-fs (sdb6): revision level too high, forcing read-only mode # grep sdb6 /proc/mounts /dev/sdb6 /mnt/test2 ext4 rw,seclabel,relatime,data=ordered 0 0 Reviewed-by: Andreas Dilger <adilger@whamcloud.com> Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: stable@kernel.org
2012-05-28ext4: fix potential NULL dereference in ext4_free_inodes_counts()Dan Carpenter
The ext4_get_group_desc() function returns NULL on error, and ext4_free_inodes_count() function dereferences it without checking. There is a check on the next line, but it's too late. Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: stable@kernel.org
2012-05-28Merge branch 'doc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull documentation updates from Jiri Kosina: "I am currently relaying documentation patches through 'doc' branch of trivial tree, until Rob, the new documentation maintainer, has established a proper tree." * 'doc' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: doc: ext3: update documentation with barrier=1 default Documentation/initrd.txt: Change the location of util-linux Documentation/SubmittingPatches: suggested the use of scripts/get_maintainer.pl Documentation/kernel-parameters: remove autotest and mcatest
2012-05-28Merge branch 'misc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull misc kbuild changes from Michal Marek: "The non-critical part of kbuild for 3.5 includes - two new coccinelle checks - fix for make deb-pkg to include generated headers in arch/*/include I have more make-deb-pkg fixes in the backlog, but these will likely have to wait for 3.6." * 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: builddeb: include autogenerated header files scripts/coccinelle: sizeof of pointer scripts/coccinelle: address test is always true
2012-05-28Merge branch 'kconfig' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kconfig changes from Michal Marek: - Error handling for make KCONFIG_ALLCONFIG=<...> all*config plus a fix for a bug that was exposed by this - Fix for the script/config utility. * 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: scripts/config: properly report and set string options kbuild: all{no,yes,mod,def,rand}config only read files when instructed to. kconfig: Add error handling to KCONFIG_ALLCONFIG
2012-05-28Merge branch 'kbuild' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kbuild updates from Michal Marek. Fixed up nontrivial merge conflict in Makefile as per Stephen Rothwell and linux-next (and trivial arch/sparc/Makefile changes due to removed sparc32 logic). * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: mips: Fix KBUILD_CPPFLAGS definition kbuild: fix ia64 link kbuild: document KBUILD_LDS, KBUILD_VMLINUX_{INIT,MAIN} and LDFLAGS_vmlinux kbuild: link of vmlinux moved to a script kbuild: refactor final link of sparc32 kbuild: drop unused KBUILD_VMLINUX_OBJS from top-level Makefile kbuild: Makefile: remove unnecessary check for m68knommu ARCH
2012-05-28Merge tag 'writeback' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linuxLinus Torvalds
Pull writeback tree from Wu Fengguang: "Mainly from Jan Kara to avoid iput() in the flusher threads." * tag 'writeback' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux: writeback: Avoid iput() from flusher thread vfs: Rename end_writeback() to clear_inode() vfs: Move waiting for inode writeback from end_writeback() to evict_inode() writeback: Refactor writeback_single_inode() writeback: Remove wb->list_lock from writeback_single_inode() writeback: Separate inode requeueing after writeback writeback: Move I_DIRTY_PAGES handling writeback: Move requeueing when I_SYNC set to writeback_sb_inodes() writeback: Move clearing of I_SYNC into inode_sync_complete() writeback: initialize global_dirty_limit fs: remove 8 bytes of padding from struct writeback_control on 64 bit builds mm: page-writeback.c: local functions should not be exposed globally
2012-05-28Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds
Pull microblaze changes from Michal Simek. * 'next' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Setup correct pointer to TLS area microblaze: Add TLS support to sys_clone microblaze: ftrace: Pass the first calling instruction for dynamic ftrace microblaze: Port OOM changes to do_page_fault microblaze: Do not select GENERIC_GPIO by default
2012-05-28perf ui: Make --stdio default when TUI is not supportedNamhyung Kim
The commit dc41b9b8f02db ("perf ui: Change fallback policy of setup_browser") changed default behavior of the function but missed setting the use_browser variable to 0 accidently. So perf report ends up doing nothing in such cases. Fix it. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1338216802-5675-1-git-send-email-namhyung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-05-28ASoC: imx-ssi: Use clk_prepare_enable/clk_disable_unprepareFabio Estevam
Fix the following kernel crash: ------------[ cut here ]------------ WARNING: at drivers/clk/clk.c:508 __clk_enable+0x9c/0xa8() Modules linked in: Backtrace: [<80011ef4>] (dump_backtrace+0x0/0x10c) from [<803fd48c>] (dump_stack+0x18/0x1c) r7:00000009 r6:000001fc r5:803002ac r4:00000000 [<803fd474>] (dump_stack+0x0/0x1c) from [<8002003c>] (warn_slowpath_common+0x54/0x6c) [<8001ffe8>] (warn_slowpath_common+0x0/0x6c) from [<80020078>] (warn_slowpath_null+0x24/0x2c) r9:00000090 r8:8600e2c0 r7:8605c808 r6:8605c800 r5:8605d780 r4:8600e2c0 [<80020054>] (warn_slowpath_null+0x0/0x2c) from [<803002ac>] (__clk_enable+0x9c/0xa8) [<80300210>] (__clk_enable+0x0/0xa8) from [<803002d0>] (clk_enable+0x18/0x30) r5:8605d780 r4:80000013 [<803002b8>] (clk_enable+0x0/0x30) from [<803247c4>] (imx_ssi_probe+0xa0/0x4f4) r5:8605d780 r4:86174180 [<80324724>] (imx_ssi_probe+0x0/0x4f4) from [<8022b0fc>] (platform_drv_probe+0x20/0x24) [<8022b0dc>] (platform_drv_probe+0x0/0x24) from [<80229c40>] (driver_probe_device+0x80/0x1f0) [<80229bc0>] (driver_probe_device+0x0/0x1f0) from [<80229e44>] (__driver_attach+0x94/0x98) r9:00000090 r8:805b7800 r7:00000000 r6:8605c83c r5:805b1b44 r4:8605c808 [<80229db0>] (__driver_attach+0x0/0x98) from [<8022856c>] (bus_for_each_dev+0x68/0x94) r7:00000000 r6:80229db0 r5:86033eb0 r4:805b1b44 [<80228504>] (bus_for_each_dev+0x0/0x94) from [<80229aa0>] (driver_attach+0x20/0x28) r7:00000000 r6:86174100 r5:8059f6d0 r4:805b1b44 [<80229a80>] (driver_attach+0x0/0x28) from [<80228d50>] (bus_add_driver+0x18c/0x268) [<80228bc4>] (bus_add_driver+0x0/0x268) from [<8022a474>] (driver_register+0x80/0x134) [<8022a3f4>] (driver_register+0x0/0x134) from [<8022b4a4>] (platform_driver_register+0x4c/0x60) r7:00000000 r6:805b7800 r5:00000018 r4:86032000 [<8022b458>] (platform_driver_register+0x0/0x60) from [<80556890>] (imx_ssi_driver_init+0x14/0x1c) [<8055687c>] (imx_ssi_driver_init+0x0/0x1c) from [<8000868c>] (do_one_initcall+0x40/0x194) [<8000864c>] (do_one_initcall+0x0/0x194) from [<8052f3b0>] (kernel_init+0x114/0x1f0) [<8052f29c>] (kernel_init+0x0/0x1f0) from [<8002445c>] (do_exit+0x0/0x788) ---[ end trace d4aa739205917dbb ]--- asoc: mc13783-hifi <-> imx-ssi.0 mapping ok Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-28KVM: MMU: fix huge page adapted on non-PAE hostXiao Guangrong
The huge page size is 4M on non-PAE host, but 2M page size is used in transparent_hugepage_adjust(), so the page we get after adjust the mapping level is not the head page, the BUG_ON() will be triggered Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-05-28NFSv4: update_changeattr does not need to set NFS_INO_REVAL_PAGECACHETrond Myklebust
We're already invalidating the data cache, and setting the new change attribute. Since directories don't care about the i_size field, there is no need to be forcing any extra revalidation of the page cache. We do keep the NFS_INO_INVALID_ATTR flag, in order to force an attribute cache revalidation on stat() calls since we do not update the mtime and ctime fields. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-05-28sparc32: Export leon_dma_ops to modules.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-27sparc32: support leon + sun in dma_make_coherent()Sam Ravnborg
No need for two implementations - we check the cpu model. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
2012-05-27sparc32,leon: always support leon in ioportSam Ravnborg
Unconditially define pci32_dma_ops as this is used for leon. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
2012-05-27sparc32,leon: always include leon_pmc in buildSam Ravnborg
Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
2012-05-27sparc32: refactor cpu_idle()Sam Ravnborg
With the removal of sun4c we can use the same cpu_idle() implementation on UP and SMP. This also fix it so we use the same version independent on LEON enabled or not. V2: Fixed whitespace issue pointed out by Josip Rodin. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Josip Rodin <joy@entuzijast.net> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
2012-05-27sparc32: srmmu_probe now knows about leon tooSam Ravnborg
Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
2012-05-27sparc32: drop LEON hack for ASI_M_MMUREGSSam Ravnborg
All users of MMUREGS ASI is now LEON/SUN aware, so this is no longer required. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
2012-05-27sparc32: introduce run-time patching of srmmu access functionsSam Ravnborg
LEON uses a different ASI than SUN for MMUREGS Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
2012-05-27sparc32: introduce support for run-time patching for all shared assembler codeSam Ravnborg
All users of MMUREGS ASI in kernel/ now uses run-time patching. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
2012-05-27sparc32,leon: fix section mismatch warningSam Ravnborg
Fix following warning: WARNING: arch/sparc/kernel/built-in.o(.cpuinit.text+0x9f4): Section mismatch in reference from the function leon_callin() to the function .init.text:leon_configure_cache_smp() The function __cpuinit leon_callin() references a function __init leon_configure_cache_smp(). If leon_configure_cache_smp is only used by leon_callin then annotate leon_configure_cache_smp with a matching annotation. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
2012-05-27sparc32,leon: always include leon_smp + leon_mm in buildSam Ravnborg
Fix-up leon specific assembler to use ASI_LEON_MMUREGS Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
2012-05-27sparc32,leon: always include leon_kernel in buildSam Ravnborg
Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
2012-05-27sparc32,leon: clean up leon.hSam Ravnborg
- Drop unused stuff accumulated over time - Drop non-leon stuff - Include almost all of the header unconditionally Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
2012-05-27sparc32: handle leon in cpu.cSam Ravnborg
A few hardcoded constant were replaced by symbolic versions to improve readability Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
2012-05-27sparc32: handle leon in irq_32.cSam Ravnborg
Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
2012-05-27sparc32: add support for run-time patching of leon/sun single instructionsSam Ravnborg
This will be used to handle that MMUREGS has different ASI for SUN and LEON. This is the infrastructure only - users will come later. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
2012-05-27sparc32: introduce sparc32_start_kernel called from head_32.SSam Ravnborg
This gives us a C hook before we call start_kernel() Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2012-05-27sparc32: implement proper LEON support in head_32 (after highmem)Sam Ravnborg
We use the compatibility property to determine the sun models. For leon we use psr.impl and ignore the result of the getprops call. Include a hack to allow build as the support code is not yet converted. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
2012-05-27sparc32: implement proper LEON support in head_32 (before highmem)Sam Ravnborg
Use PSR to check if the CPU is LEON and jump to LEON specific code in this case. Added a few constants to psr.h to increase readability. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
2012-05-27sparc32: string and whitespace cleanup in head_32.SSam Ravnborg
A few strings have been adopted to show more relevant info. Julian Calaby <julian.calaby@gmail.com> pointed out one that I would otherwise have missed. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2012-05-27sparc: fix bad merge of sparc KconfigStephen Rothwell
Fixes this sparc32 defconfig build error: timekeeping.c:(.text+0x277c4): undefined reference to `arch_gettimeoffset' Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linuxDavid S. Miller
Pull in Linus's tree to get the commits that blew away ARCH_USES_GETTIMEOFFSET but didn't update Sparc correctly, so that I can apply Stephen Rothwell's fix for that mis-merge. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-27openrisc: use generic strnlen_user() functionJonas Bonn
The generic version is both easier to support and more correct. Signed-off-by: Jonas Bonn <jonas@southpole.se> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-27powerpc: Use the new generic strncpy_from_user() and strnlen_user()Paul Mackerras
This is much the same as for SPARC except that we can do the find_zero() function more efficiently using the count-leading-zeroes instructions. Tested on 32-bit and 64-bit PowerPC. Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-27lib: Fix generic strnlen_user for 32-bit big-endian machinesPaul Mackerras
The aligned_byte_mask() definition is wrong for 32-bit big-endian machines: the "7-(n)" part of the definition assumes a long is 8 bytes. This fixes it by using BITS_PER_LONG - 8 instead of 8*7. Tested on 32-bit and 64-bit PowerPC. Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-27Merge tag 'omapdss-for-3.5' of git://github.com/tomba/linux into fbdev-nextFlorian Tobias Schandinat
Omapdss driver changes for 3.5 merge window. Lots of normal development commits, but perhaps most notable changes are: * HDMI rework to properly decouple the HDMI audio part from the HDMI video part. * Restructure omapdss core driver so that it's possible to implement device tree support. This included changing how platform data is passed to the drivers, changing display device registration and improving the panel driver's ability to configure the underlying video output interface. * Basic support for DSI packet interleaving
2012-05-27NFSv4.1: nfs4_reset_session should use nfs4_handle_reclaim_lease_errorTrond Myklebust
The results from a call to nfs4_proc_create_session() should always be fed into nfs4_handle_reclaim_lease_error, so that we can handle errors such as NFS4ERR_SEQ_MISORDERED correctly. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-05-27NFSv4.1: Handle other occurrences of NFS4ERR_CONN_NOT_BOUND_TO_SESSIONTrond Myklebust
Let nfs4_schedule_session_recovery() handle the details of choosing between resetting the session, and other session related recovery. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-05-27NFSv4.1: Handle NFS4ERR_CONN_NOT_BOUND_TO_SESSION in the state managerTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-05-27NFSv4.1: Handle errors in nfs4_bind_conn_to_sessionTrond Myklebust
Ensure that we handle NFS4ERR_DELAY errors separately, and then let nfs4_recovery_handle_error() handle all other cases. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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