19 Feb, 2015
1 commit
-
Pull MTD updates from Brian Norris:
"NAND:- Add new Hisilicon NAND driver for Hip04
- Add default reboot handler, to ensure all outstanding erase
transactions complete in time
- jz4740: convert to use GPIO descriptor API
- Atmel: add support for sama5d4
- Change default bitflip threshold to 75% of correction strength
- Miscellaneous cleanups and bugfixesSPI NOR:
- Freescale QuadSPI:
- Fix a few probe() and remove() issues
- Add a MAINTAINERS entry for this driver
- Tweak transfer size to increase read performance
- Add suspend/resume support
- Add Micron quad I/O support
- ST FSM SPI: miscellaneous fixesJFFS2:
- gracefully handle corrupted 'offset' field found on flash
Other:
- bcm47xxpart: add tweaks for a few new devices
- mtdconcat: set return lengths properly for mtd_write_oob()
- map_ram: enable use with mtdoops
- maps: support fallback to ROM/UBI for write-protected NOR flash"* tag 'for-linus-20150216' of git://git.infradead.org/linux-mtd: (46 commits)
mtd: hisilicon: && vs & typo
jffs2: fix handling of corrupted summary length
mtd: hisilicon: add device tree binding documentation
mtd: hisilicon: add a new NAND controller driver for hisilicon hip04 Soc
mtd: avoid registering reboot notifier twice
mtd: concat: set the return lengths properly
mtd: kconfig: replace PPC_OF with PPC
mtd: denali: remove unnecessary stubs
mtd: nand: remove redundant local variable
MAINTAINERS: add maintainer entry for FREESCALE QUAD SPI driver
mtd: fsl-quadspi: improve read performance by increase AHB transfer size
mtd: fsl-quadspi: Remove unnecessary 'map_failed' label
mtd: fsl-quadspi: Remove unneeded success/error messages
mtd: fsl-quadspi: Fix the error paths
mtd: nand: omap: drop condition with no effect
mtd: nand: jz4740: Convert to GPIO descriptor API
mtd: nand: Request strength instead of bytes for soft BCH
mtd: nand: default bitflip-reporting threshold to 75% of correction strength
mtd: atmel_nand: introduce a new compatible string for sama5d4 chip
mtd: atmel_nand: return max bitflips in all sectors in pmecc_correction()
...
18 Feb, 2015
27 commits
-
Pull nfsd bugfixes from Bruce Fields:
"These are fixes for two bugs introduced during the merge window"* 'for-3.20' of git://linux-nfs.org/~bfields/linux:
nfsd4: fix v3-less build
nfsd: fix comparison in fh_fsid_match() -
Pull lazytime mount option support from Al Viro:
"Lazytime stuff from tytso"* 'lazytime' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
ext4: add optimization for the lazytime mount option
vfs: add find_inode_nowait() function
vfs: add support for a lazytime mount option -
Pull iov_iter updates from Al Viro:
"More iov_iter work - missing counterpart of iov_iter_init() for
bvec-backed ones and vfs_read_iter()/vfs_write_iter() - wrappers for
sync calls of ->read_iter()/->write_iter()"* 'iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fs: add vfs_iter_{read,write} helpers
new helper: iov_iter_bvec() -
Pull getname/putname updates from Al Viro:
"Rework of getname/getname_kernel/etc., mostly from Paul Moore. Gets
rid of quite a pile of kludges between namei and audit..."* 'getname2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
audit: replace getname()/putname() hacks with reference counters
audit: fix filename matching in __audit_inode() and __audit_inode_child()
audit: enable filename recording via getname_kernel()
simpler calling conventions for filename_mountpoint()
fs: create proper filename objects using getname_kernel()
fs: rework getname_kernel to handle up to PATH_MAX sized filenames
cut down the number of do_path_lookup() callers -
Pull debugfs patches from Al Viro:
"debugfs patches, mostly to make it possible for something like tracefs
to be transparently automounted on given directory in debugfs.New primitive in there is debugfs_create_automount(name, parent, func,
arg), which creates a directory and makes its ->d_automount() return
func(arg). Another missing primitive was debugfs_create_file_size() -
open-coded in quite a few places. Dave's patch adds it and converts
the open-code instances to calling it"* 'debugfs_automount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
debugfs: Provide a file creation function that also takes an initial size
new primitive: debugfs_create_automount()
debugfs: split end_creating() into success and failure cases
debugfs: take mode-dependent parts of debugfs_get_inode() into callers
fold debugfs_mknod() into callers
fold debugfs_create() into caller
fold debugfs_mkdir() into caller
debugfs_mknod(): get rid useless arguments
fold debugfs_link() into caller
debugfs: kill __create_file()
debugfs: split the beginning and the end of __create_file() off
debugfs_{mkdir,create,link}(): get rid of redundant argument -
Pull misc VFS updates from Al Viro:
"This cycle a lot of stuff sits on topical branches, so I'll be sending
more or less one pull request per branch.This is the first pile; more to follow in a few. In this one are
several misc commits from early in the cycle (before I went for
separate branches), plus the rework of mntput/dput ordering on umount,
switching to use of fs_pin instead of convoluted games in
namespace_unlock()"* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
switch the IO-triggering parts of umount to fs_pin
new fs_pin killing logics
allow attaching fs_pin to a group not associated with some superblock
get rid of the second argument of acct_kill()
take count and rcu_head out of fs_pin
dcache: let the dentry count go down to zero without taking d_lock
pull bumping refcount into ->kill()
kill pin_put()
mode_t whack-a-mole: chelsio
file->f_path.dentry is pinned down for as long as the file is open...
get rid of lustre_dump_dentry()
gut proc_register() a bit
kill d_validate()
ncpfs: get rid of d_validate() nonsense
selinuxfs: don't open-code d_genocide() -
Merge yet more updates from Andrew Morton:
- a pile of minor fs fixes and cleanups
- kexec updates
- random misc fixes in various places: vmcore, rbtree, eventfd, ipc, seccomp.
- a series of python-based kgdb helper scripts
* emailed patches from Andrew Morton : (58 commits)
seccomp: cap SECCOMP_RET_ERRNO data to MAX_ERRNO
samples/seccomp: improve label helper
ipc,sem: use current->state helpers
scripts/gdb: disable pagination while printing from breakpoint handler
scripts/gdb: define maintainer
scripts/gdb: convert CpuList to generator function
scripts/gdb: convert ModuleList to generator function
scripts/gdb: use a generator instead of iterator for task list
scripts/gdb: ignore byte-compiled python files
scripts/gdb: port to python3 / gdb7.7
scripts/gdb: add basic documentation
scripts/gdb: add lx-lsmod command
scripts/gdb: add class to iterate over CPU masks
scripts/gdb: add lx_current convenience function
scripts/gdb: add internal helper and convenience function for per-cpu lookup
scripts/gdb: add get_gdbserver_type helper
scripts/gdb: add internal helper and convenience function to retrieve thread_info
scripts/gdb: add is_target_arch helper
scripts/gdb: add helper and convenience function to look up tasks
scripts/gdb: add task iteration class
... -
Fix checkpatch error:
ERROR: switch and case should be at the same indent
Signed-off-by: Fabian Frederick
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
affs_symlink_inode_operations was already declared extern in affs.h
Signed-off-by: Fabian Frederick
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
return is not needed at the end of function.
Signed-off-by: Fabian Frederick
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
else is unnecessary after return -ENAMETOOLONG
Signed-off-by: Fabian Frederick
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
30 was used all over the place to compare name length against
AFFS maximum name length.Signed-off-by: Fabian Frederick
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- Some min() were used with different types.
- Create a new variable in __affs_hash_dentry() to process
affs_check_name()/min() returnSigned-off-by: Fabian Frederick
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Call mutex_destroy() on superblock mutex in affs_kill_sb() otherwise mutex
debugging code isn't able to detect that mutex is used after being freed.
(thanks to Jan Kara for complete definition).Signed-off-by: Fabian Frederick
Cc: Jan Kara
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use the same fallback to normal IO in case of write
operations beyond EOF as fat direct IO. This patch fixesfsx file -d -Z -r 4096 -w 4096
Report:
129(129 mod 256): TRUNCATE DOWN from 0x3ff01 to 0xb3f6
130(130 mod 256): WRITE 0x22000 thru 0x2dfff (0xc000 bytes) HOLEThanks to Jan for helping me on this problem.
The ideal solution suggested by Jan Kara would be to use
cont_write_begin() but affs direct_IO shouldn't be used a lot anyway...Signed-off-by: Fabian Frederick
Reviewed-by: Jan Kara
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Fabian Frederick
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- "inode.i_ino" is "unsigned long",
- "loff_t" is always "unsigned long long",
- "sector_t" should be cast to "unsigned long long" for printing,
- "u32" should not be cast to "unsigned int" for printing.Signed-off-by: Geert Uytterhoeven
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The spinlock in eventfd_poll is trying to protect the count of events so
it can decide if it should return POLLIN, POLLERR, or POLLOUT. But,
because of the way we drop the lock after calling poll_wait, and drop it
again before returning, we have the same pile of races with the lock as
we do with a single read of ctx->count().This replaces the lock with a read barrier and single read.
eventfd_write does a single bump of ctx->count, so this should not add
new races with adding events. eventfd_read is similar, it will do a
single decrement with the lock held, and so we're making the race with
concurrent readers slightly larger.This spinlock is the top CPU user in kernel code during one of our
workloads. Removing it gives us a ~2% boost.[arnd@arndb.de: avoid unused variable warning]
[dan.carpenter@oracle.com: type bug in eventfd_poll()]
Signed-off-by: Chris Mason
Cc: Davide Libenzi
Signed-off-by: Arnd Bergmann
Signed-off-by: Dan Carpenter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
When updating PT_NOTE header size (ie. p_memsz), an overflow issue
happens with the following bogus note entry:n_namesz = 0xFFFFFFFF
n_descsz = 0x0
n_type = 0x0This kind of note entry should be dropped during updating p_memsz. But
because n_namesz is 32bit, after (n_namesz + 3) & (~3), it's overflow to
0x0, the note entry size looks sane and reserved.When userspace (eg. crash utility) is trying to access such bogus note,
it could lead to an unexpected behavior (eg. crash utility segment fault
because it's reading bogus address).The source of bogus note hasn't been identified yet. At least we could
drop the bogus note so user space wouldn't be surprised.Signed-off-by: WANG Chao
Cc: Dave Anderson
Cc: Baoquan He
Cc: Randy Wright
Cc: Vivek Goyal
Cc: Paul Gortmaker
Cc: Fabian Frederick
Cc: Vitaly Kuznetsov
Cc: Rashika Kheria
Cc: Greg Pearson
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use the MSDOS_SB macro to get msdos_sb_info, instead of coding it
directly.Signed-off-by: Fred Chou
Acked-by: OGAWA Hirofumi
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix sparse warning:
fs/reiserfs/inode.c:2769:19: warning: Using plain integer as NULL pointer
Signed-off-by: Fabian Frederick
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Let locking subsystem decide on mutex management. As reported by Andrew
Morton this patch fixes a bug:: lock_ufs() is assuming that on non-preempt uniprocessor, the calling
: code will run atomically up to the matching unlock_ufs().
:
: But that isn't true. The very first site I looked at (ufs_frag_map)
: does sb_bread() under lock_ufs(). And sb_bread() will call schedule(),
: very commonly.
:
: The ->mutex_owner stuff is a bit hacky but should work OK.Signed-off-by: Fabian Frederick
Cc: Evgeniy Dushistov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix the following coccinelle warning:
fs/ufs/super.c:1418:7-28: WARNING: casting value returned by memory allocation function to (struct ufs_inode_info *) is useless.
Signed-off-by: Fabian Frederick
Cc: Evgeniy Dushistov
Cc: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- Move operation structures to avoid forward declarations.
- Fix some checkpatch warnings:
WARNING: Missing a blank line after declarations
+ struct inode *host_inode = file_inode(host_file);
+ mutex_lock(&host_inode->i_mutex);ERROR: that open brace { should be on the previous line
+const struct dentry_operations coda_dentry_operations =
+{ERROR: that open brace { should be on the previous line
+const struct inode_operations coda_dir_inode_operations =
+{Signed-off-by: Fabian Frederick
Cc: Jan Harkes
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix the following coccinelle warning:
fs/befs/linuxvfs.c:278:14-36: WARNING: casting value returned by memory allocation function to (struct befs_inode_info *) is useless.
[akpm@linux-foundation.org: avoid 80-col ugliness]
Signed-off-by: Fabian Frederick
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Pull parisc update from Helge Deller:
"The major change in here is the removal of the old HP-UX compat code
which should have made it possible to load and execute 32-bit HP-UX
binaries on PA-RISC Linux. Since it was never functional and since
nobody cares about old 32-bit HPUX binaries any longer, it's now time
to free up 3200 lines of kernel code (CONFIG_HPUX and
CONFIG_BINFMT_SOM).Other than that we wire up the execveat() syscall, fix sparse errors
and have some whitespace cleanups"* 'parisc-3.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
fs/binfmt_som: Drop kernel support for HP-UX SOM binaries
parisc: Remove unused function
parisc: macro whitespace fixes
parisc/uaccess: fix sparse errors
parisc: hpux - Remove HPUX syscall numbers
parisc: hpux - Remove hpux gateway page
parisc: hpux - Delete files in hpux subdirectory
parisc: hpux - Do not compile hpux subdirectory
parisc: hpux - Drop support for HP-UX binaries
parisc: Add error checks when building up signal trampoline handler
parisc: Wire up execveat syscall -
Provide a file creation function that also takes an initial size so that the
caller doesn't have to set i_size, thus meaning that we don't have to call
deal with ->d_inode in the callers.Signed-off-by: David Howells
Signed-off-by: Al Viro
17 Feb, 2015
12 commits
-
The parisc arch has been the only user of HP-UX SOM binaries.
Support for HP-UX executables was never finished and since we now drop support
for the HP-UX compat layer anyway, it does not makes sense to keep the
BINFMT_SOM support.Cc: linux-fsdevel@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Helge Deller -
Intruduce a bit OCFS2_FEATURE_RO_COMPAT_APPEND_DIO and check it in
write flow. If the bit is not set, fall back to the old way.Signed-off-by: Joseph Qi
Cc: Weiwei Wang
Cc: Joel Becker
Cc: Junxiao Bi
Cc: Mark Fasheh
Cc: Xuejiufei
Cc: alex chen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
If one node has crashed with orphan entry leftover, another node which do
append O_DIRECT write to the same file will override the
i_dio_orphaned_slot. Then the old entry won't be cleaned forever. If
this case happens, we let it wait for orphan recovery first.Signed-off-by: Joseph Qi
Cc: Weiwei Wang
Cc: Joel Becker
Cc: Junxiao Bi
Cc: Mark Fasheh
Cc: Xuejiufei
Cc: alex chen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Complte the rest request thourgh buffer io after direct write performed.
Signed-off-by: Joseph Qi
Cc: Weiwei Wang
Cc: Joel Becker
Cc: Junxiao Bi
Cc: Mark Fasheh
Cc: Xuejiufei
Cc: alex chen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Now we can do direct io and do not fallback to buffered IO any more in
case of append O_DIRECT write.Signed-off-by: Joseph Qi
Cc: Weiwei Wang
Cc: Joel Becker
Cc: Junxiao Bi
Cc: Mark Fasheh
Cc: Xuejiufei
Cc: alex chen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Allow blocks allocation in ocfs2_direct_IO_get_blocks.
Signed-off-by: Joseph Qi
Cc: Weiwei Wang
Cc: Junxiao Bi
Cc: Joel Becker
Cc: Mark Fasheh
Cc: Xuejiufei
Cc: alex chen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Implement ocfs2_direct_IO_write. Add the inode to orphan dir first, and
then delete it once append O_DIRECT finished.This is to make sure block allocation and inode size are consistent.
[akpm@linux-foundation.org: fix it for "block: Add discard flag to blkdev_issue_zeroout() function"]
Signed-off-by: Joseph Qi
Cc: Weiwei Wang
Cc: Junxiao Bi
Cc: Joel Becker
Cc: Mark Fasheh
Cc: Xuejiufei
Cc: alex chen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Define two orphan recovery types, which indicates if need truncate file or
not.Signed-off-by: Joseph Qi
Cc: Weiwei Wang
Cc: Junxiao Bi
Cc: Joel Becker
Cc: Mark Fasheh
Cc: Xuejiufei
Cc: alex chen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add functions to add inode to orphan dir and remove inode in orphan dir.
Here we do not call ocfs2_prepare_orphan_dir and ocfs2_orphan_add
directly. Because append O_DIRECT will add inode to orphan two and may
result in more than one orphan entry for the same inode.[akpm@linux-foundation.org: avoid dynamic stack allocation]
Signed-off-by: Joseph Qi
Cc: Weiwei Wang
Cc: Junxiao Bi
Cc: Joel Becker
Cc: Mark Fasheh
Cc: Xuejiufei
Cc: alex chen
Cc: Fengguang Wu
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Currently in case of append O_DIRECT write (block not allocated yet),
ocfs2 will fall back to buffered I/O. This has some disadvantages.
Firstly, it is not the behavior as expected. Secondly, it will consume
huge page cache, e.g. in mass backup scenario. Thirdly, modern
filesystems such as ext4 support this feature.In this patch set, the direct I/O write doesn't fallback to buffer I/O
write any more because the allocate blocks are enabled in direct I/O now.This patch (of 9):
Prepare some interfaces which will be used in append O_DIRECT write.
Signed-off-by: Joseph Qi
Cc: Weiwei Wang
Cc: Mark Fasheh
Cc: Joel Becker
Cc: Xuejiufei
Cc: Junxiao Bi
Cc: alex chen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The DAX code accesses the underlying storage through the kernel's linear
mapping, which may not be cache-coherent with user mappings on ARM, MIPS
or SPARC. Temporarily disable the DAX code until this problem is
resolved.The original XIP code also had this problem, but it was never noticed.
Signed-off-by: Matthew Wilcox
Cc: Andreas Dilger
Cc: Boaz Harrosh
Cc: Christoph Hellwig
Cc: Dave Chinner
Cc: Jan Kara
Cc: Jens Axboe
Cc: Kirill A. Shutemov
Cc: Mathieu Desnoyers
Cc: Randy Dunlap
Cc: Ross Zwisler
Cc: Theodore Ts'o
Cc: Ralf Baechle
Cc: Russell King
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
