aboutsummaryrefslogtreecommitdiffstats
path: root/fs (follow)
AgeCommit message (Collapse)AuthorFilesLines
2014-08-08initramfs: support initramfs that is bigger than 2GiBYinghai Lu2-5/+6
Now with 64bit bzImage and kexec tools, we support ramdisk that size is bigger than 2g, as we could put it above 4G. Found compressed initramfs image could not be decompressed properly. It turns out that image length is int during decompress detection, and it will become < 0 when length is more than 2G. Furthermore, during decompressing len as int is used for inbuf count, that has problem too. Change len to long, that should be ok as on 32 bit platform long is 32bits. Tested with following compressed initramfs image as root with kexec. gzip, bzip2, xz, lzma, lzop, lz4. run time for populate_rootfs(): size name Nehalem-EX Westmere-EX Ivybridge-EX 9034400256 root_img : 26s 24s 30s 3561095057 root_img.lz4 : 28s 27s 27s 3459554629 root_img.lzo : 29s 29s 28s 3219399480 root_img.gz : 64s 62s 49s 2251594592 root_img.xz : 262s 260s 183s 2226366598 root_img.lzma: 386s 376s 277s 2901482513 root_img.bz2 : 635s 599s Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Rashika Kheria <rashika.kheria@gmail.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Kyungsik Lee <kyungsik.lee@lge.com> Cc: P J P <ppandit@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Cc: "Daniel M. Weeks" <dan@danweeks.net> Cc: Alexandre Courbot <acourbot@nvidia.com> Cc: Jan Beulich <JBeulich@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/qnx6: update debugging to current functionsFabian Frederick5-39/+23
Add DDEBUG in Makefile when CONFIG_QNX6FS_DEBUG is set. All QNX6DEBUG messages are replaced by pr_debug which means debugging will be emitted in debug level only and no more in error and info levels. debug uses now pr_fmt and __func__ QNX6DEBUG definition has been removed. Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Joe Perches <joe@perches.com> Cc: Kai Bankett <chaosman@ontika.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/qnx6: use pr_fmt and __func__ in loggingFabian Frederick4-38/+44
Remove "qnx6:" and "qnx6: " from each logging instruction. Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Joe Perches <joe@perches.com> Cc: Kai Bankett <chaosman@ontika.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/qnx6: convert printk to pr_foo()Fabian Frederick3-55/+43
Use current logging functions. Coalesce formats. Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Joe Perches <joe@perches.com> Cc: Kai Bankett <chaosman@ontika.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/romfs/super.c: add blank line after declarationsFabian Frederick1-0/+2
Fix checkpatch warning: WARNING: Missing a blank line after declarations Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/romfs/super.c: use pr_fmt in loggingFabian Frederick1-7/+8
- Remove "Error" in format logging (already in pr_ level) - Use modulename in pr_fmt instead of ROMFS: in each pr_ callsites. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/romfs/super.c: convert printk to pr_foo()Fabian Frederick1-9/+7
Use current logging functions. Coalesce formats. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/cramfs/inode.c: use linux/uaccess.hFabian Frederick1-1/+1
Fixes checkpatch warning: WARNING: Use #include <linux/uaccess.h> instead of <asm/uaccess.h> Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/cramfs: code clean-upFabian Frederick2-12/+15
Fixes some checkpatch errors/warnings: WARNING: Missing a blank line after declarations ERROR: spaces required around that '=' (ctx:VxV) ERROR: "foo * bar" should be "foo *bar" ERROR: space prohibited after that open parenthesis '(' Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/cramfs: use pr_fmtFabian Frederick2-8/+12
Use module name for "cramfs: " prefix. (note that uncompress.c printk had no prefix). Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/cramfs: convert printk to pr_foo()Fabian Frederick2-10/+10
Use current logging functions. No level printk converted to pr_err Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/omfs/inode.c: replace count*size kzalloc by kcallocFabian Frederick1-1/+1
kcalloc manages count*sizeof overflow. Signed-off-by: Fabian Frederick <fabf@skynet.be> Acked-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/pstore/ram_core.c: replace count*size kmalloc by kmalloc_arrayFabian Frederick1-1/+1
kmalloc_array manages count*sizeof overflow. Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Anton Vorontsov <anton@enomsg.org> Cc: Colin Cross <ccross@android.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/bfs: use bfs prefix for dump_imapFabian Frederick3-8/+5
All bfs related functions use bfs_ prefix. This patch also moves extern declaration to bfs.h and removes prototype from inode.c This fixes checkpatch warning: WARNING: externs should be avoided in .c files Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: "Tigran A. Aivazian" <tigran@aivazian.fsnet.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08adfs: add __printf verification, fix format/argument mismatchesJoe Perches3-4/+4
Might as well do the right thing. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/adfs/dir_fplus.c: replace count*size kzalloc by kcallocFabian Frederick1-1/+1
kcalloc manages count*sizeof overflow. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/adfs/dir_fplus.c: use ARRAY_SIZE instead of sizeof/sizeof[0]Fabian Frederick1-1/+1
Use kernel.h definition. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/exofs/ore_raid.c: replace count*size kzalloc by kcallocFabian Frederick1-1/+1
kcalloc manages count*sizeof overflow. Signed-off-by: Fabian Frederick <fabf@skynet.be> Acked-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08sysctl: remove typedef ctl_tableJoe Perches1-1/+1
Remove the final user, and the typedef itself. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/proc/vmcore.c:mmap_vmcore: skip non-ram pages reported by hypervisorsVitaly Kuznetsov1-3/+79
We have a special check in read_vmcore() handler to check if the page was reported as ram or not by the hypervisor (pfn_is_ram()). However, when vmcore is read with mmap() no such check is performed. That can lead to unpredictable results, e.g. when running Xen PVHVM guest memcpy() after mmap() on /proc/vmcore will hang processing HVMMEM_mmio_dm pages creating enormous load in both DomU and Dom0. Fix the issue by mapping each non-ram page to the zero page. Keep direct path with remap_oldmem_pfn_range() to avoid looping through all pages on bare metal. The issue can also be solved by overriding remap_oldmem_pfn_range() in xen-specific code, as remap_oldmem_pfn_range() was been designed for. That, however, would involve non-obvious xen code path for all x86 builds with CONFIG_XEN_PVHVM=y and would prevent all other hypervisor-specific code on x86 arch from doing the same override. [fengguang.wu@intel.com: remap_oldmem_pfn_checked() can be static] [akpm@linux-foundation.org: clean up layout] Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com> Acked-by: Vivek Goyal <vgoyal@redhat.com> Cc: David Vrabel <david.vrabel@citrix.com> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fork/exec: cleanup mm initializationVladimir Davydov1-4/+0
mm initialization on fork/exec is spread all over the place, which makes the code look inconsistent. We have mm_init(), which is supposed to init/nullify mm's internals, but it doesn't init all the fields it should: - on fork ->mmap,mm_rb,vmacache_seqnum,map_count,mm_cpumask,locked_vm are zeroed in dup_mmap(); - on fork ->pmd_huge_pte is zeroed in dup_mm(), immediately before calling mm_init(); - ->cpu_vm_mask_var ptr is initialized by mm_init_cpumask(), which is called before mm_init() on both fork and exec; - ->context is initialized by init_new_context(), which is called after mm_init() on both fork and exec; Let's consolidate all the initializations in mm_init() to make the code look cleaner. Signed-off-by: Vladimir Davydov <vdavydov@parallels.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: David Rientjes <rientjes@google.com> Cc: Christoph Lameter <cl@linux.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08proc: remove INF macroAlexey Dobriyan2-42/+0
If you're applying this patch, all /proc/$PID/* files were converted to seq_file interface and this code became unused. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08proc: convert /proc/$PID/hardwall to seq_file interfaceAlexey Dobriyan1-2/+2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08proc: convert /proc/$PID/io to seq_file interfaceAlexey Dobriyan1-8/+10
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08proc: convert /proc/$PID/oom_score to seq_file interfaceAlexey Dobriyan1-4/+5
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08proc: convert /proc/$PID/schedstat to seq_file interfaceAlexey Dobriyan1-4/+5
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08proc: convert /proc/$PID/wchan to seq_file interfaceAlexey Dobriyan1-5/+6
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08proc: convert /proc/$PID/cmdline to seq_file interfaceAlexey Dobriyan1-4/+11
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08proc: convert /proc/$PID/syscall to seq_file interfaceAlexey Dobriyan1-6/+7
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08proc: convert /proc/$PID/limits to seq_file interfaceAlexey Dobriyan1-15/+12
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08proc: convert /proc/$PID/auxv to seq_file interfaceAlexey Dobriyan1-10/+8
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08proc: more "const char *" pointersAlexey Dobriyan1-4/+4
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08proc: remove proc_tty_ldisc variableAlexey Dobriyan1-2/+2
/proc/tty/ldisc appear to be unused as a directory and it had been always that way. But it is userspace visible thing. Cowardly remove only in-kernel variable holding it. [akpm@linux-foundation.org: add comment] Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08proc: make proc_subdir_lock staticAlexey Dobriyan2-3/+1
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08proc: faster /proc/$PID lookupAlexey Dobriyan2-3/+3
Currently lookup for /proc/$PID first goes through spinlock and whole list of misc /proc entries only to confirm that, yes, /proc/42 can not possibly match random proc entry. List is is several dozens entries long (52 entries on my setup). None of this is necessary. Try to convert dentry name to integer first. If it works, it must be /proc/$PID. If it doesn't, it must be random proc entry. Based on patch from Al Viro. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08proc: add and remove /proc entry create checksAlexey Dobriyan4-21/+21
* remove proc_create(NULL, ...) check, let it oops * warn about proc_create("", ...) and proc_create("very very long name", ...) proc code keeps length as u8, no 256+ name length possible * warn about proc_create("123", ...) /proc/$PID and /proc/misc namespaces are separate things, but dumb module might create funky a-la $PID entry. * remove post mortem strchr('/') check Triggering it implies either strchr() is buggy or memory corruption. It should be VFS check anyway. In reality, none of these checks will ever trigger, it is preparation for the next patch. Based on patch from Al Viro. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08proc: constify seq_operationsFabian Frederick1-1/+1
proc_uid_seq_operations, proc_gid_seq_operations and proc_projid_seq_operations are only called in proc_id_map_open with seq_open as const struct seq_operations so we can constify the 3 structures and update proc_id_map_open prototype. text data bss dec hex filename 6817 404 1984 9205 23f5 kernel/user_namespace.o-before 6913 308 1984 9205 23f5 kernel/user_namespace.o-after Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/proc/kcore.c: use PAGE_ALIGN instead of ALIGN(PAGE_SIZE)Fabian Frederick1-1/+1
Use mm.h definition. Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Xishi Qiu <qiuxishi@huawei.com> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/hpfs/dnode.c: fix suspect code indentFabian Frederick1-8/+9
Fix 2 checkpatch warnings: WARNING: suspect code indent for conditional statements Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/reiserfs/xattr.c: fix blank line missing after declarationsFabian Frederick1-0/+20
Fix checkpatch warning: WARNING: Missing a blank line after declarations Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/reiserfs: use linux/uaccess.hFabian Frederick14-14/+14
Fix checkpatch warning WARNING: Use #include <linux/uaccess.h> instead of <asm/uaccess.h> Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/reiserfs: replace not-standard %Lu/%LdFabian Frederick4-9/+8
Fixes checkpatch warnings: "WARNING: %Ld/%Lu are not-standard C, use %lld/%llu" Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/ufs/inode.c: kernel-doc warning fixesFabian Frederick1-16/+16
Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/ufs: convert UFSD printk to pr_debugFabian Frederick2-3/+3
Convert no level printk to pr_debug in UFSD. DEBUG is defined with CONFIG_UFS_DEBUG so pr_debug are emitted here. Also fixing call to UFSD (add;) Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/ufs/super.c: use va_format instead of buffer/vsnprintfFabian Frederick1-20/+24
Remove error_buffer and use %pV Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/ufs/super.c: use __func__ in loggingFabian Frederick1-18/+18
Replace approximate function name by __func__ using standard format "function():" Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/ufs: use pr_fmtFabian Frederick2-8/+13
Replace UFS-fs, UFS-fs: and UFS: by pr_fmt with module name "ufs: " Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08fs/ufs: convert printk to pr_foo()Fabian Frederick2-133/+131
Use current logging functions. - no level printk under CONFIG_UFS_DEBUG converted to pr_debug - no level printk elsewhere converted to pr_err - add DDEBUG flag in Makefile - coalesce formats Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08nilfs2: integrate sysfs support into driverVyacheslav Dubeyko5-5/+34
This patch integrates creation of sysfs groups and attributes into NILFS file system driver. It was found the issue with nilfs_sysfs_{create/delete}_snapshot_group functions by Michael L Semon <mlsemon35@gmail.com> in the first version of the patch: BUG: sleeping function called from invalid context at kernel/locking/mutex.c:579 in_atomic(): 1, irqs_disabled(): 0, pid: 32676, name: umount.nilfs2 2 locks held by umount.nilfs2/32676: #0: (&type->s_umount_key#21){++++..}, at: [<790c18e2>] deactivate_super+0x37/0x58 #1: (&(&nilfs->ns_cptree_lock)->rlock){+.+...}, at: [<791bf659>] nilfs_put_root+0x23/0x5a Preemption disabled at:[<791bf659>] nilfs_put_root+0x23/0x5a CPU: 0 PID: 32676 Comm: umount.nilfs2 Not tainted 3.14.0+ #2 Hardware name: Dell Computer Corporation Dimension 2350/07W080, BIOS A01 12/17/2002 Call Trace: dump_stack+0x4b/0x75 __might_sleep+0x111/0x16f mutex_lock_nested+0x1e/0x3ad kernfs_remove+0x12/0x26 sysfs_remove_dir+0x3d/0x62 kobject_del+0x13/0x38 nilfs_sysfs_delete_snapshot_group+0xb/0xd nilfs_put_root+0x2a/0x5a nilfs_detach_log_writer+0x1ab/0x2c1 nilfs_put_super+0x13/0x68 generic_shutdown_super+0x60/0xd1 kill_block_super+0x1d/0x60 deactivate_locked_super+0x22/0x3f deactivate_super+0x3e/0x58 mntput_no_expire+0xe2/0x141 SyS_oldumount+0x70/0xa5 syscall_call+0x7/0xb The reason of the issue was placement of nilfs_sysfs_{create/delete}_snapshot_group() call under nilfs->ns_cptree_lock protection. But this protection is unnecessary and wrong solution. The second version of the patch fixes this issue. [fengguang.wu@intel.com: nilfs_sysfs_create_mounted_snapshots_group can be static] Reported-by: Michael L. Semon <mlsemon35@gmail.com> Signed-off-by: Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Tested-by: Michael L. Semon <mlsemon35@gmail.com> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08nilfs2: add /sys/fs/nilfs2/<device>/mounted_snapshots/<snapshot> groupVyacheslav Dubeyko3-0/+144
This patch adds creation of <snapshot> group for every mounted snapshot in /sys/fs/nilfs2/<device>/mounted_snapshots group. The group contains details about mounted snapshot: (1) inodes_count - show number of inodes for snapshot. (2) blocks_count - show number of blocks for snapshot. Signed-off-by: Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Michael L. Semon <mlsemon35@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.