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2012-06-28Merge branch 'for_linus' of ↵Linus Torvalds1-38/+64
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull UDF fixes from Jan Kara: "Make UDF more robust in presence of corrupted filesystem" * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: udf: Fortify loading of sparing table udf: Avoid run away loop when partition table length is corrupted udf: Use 'ret' instead of abusing 'i' in udf_load_logicalvol()
2012-06-28udf: Fortify loading of sparing tableJan Kara1-33/+53
Add sanity checks when loading sparing table from disk to avoid accessing unallocated memory or writing to it. Signed-off-by: Jan Kara <jack@suse.cz>
2012-06-28udf: Avoid run away loop when partition table length is corruptedJan Kara1-1/+9
Check provided length of partition table so that (possibly maliciously) corrupted partition table cannot cause accessing data beyond current buffer. Signed-off-by: Jan Kara <jack@suse.cz>
2012-06-28udf: Use 'ret' instead of abusing 'i' in udf_load_logicalvol()Jan Kara1-4/+2
Signed-off-by: Jan Kara <jack@suse.cz>
2012-05-29->encode_fh() API changeAl Viro1-9/+5
pass inode + parent's inode or NULL instead of dentry + bool saying whether we want the parent or not. NOTE: that needs ceph fix folded in. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-28Merge tag 'writeback' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linuxLinus Torvalds1-1/+1
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
2012-05-10vfs: make it possible to access the dentry hash/len as one 64-bit entryLinus Torvalds1-1/+1
This allows comparing hash and len in one operation on 64-bit architectures. Right now only __d_lookup_rcu() takes advantage of this, since that is the case we care most about. The use of anonymous struct/unions hides the alternate 64-bit approach from most users, the exception being a few cases where we initialize a 'struct qstr' with a static initializer. This makes the problematic cases use a new QSTR_INIT() helper function for that (but initializing just the name pointer with a "{ .name = xyzzy }" initializer remains valid, as does just copying another qstr structure). Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-06vfs: Rename end_writeback() to clear_inode()Jan Kara1-1/+1
After we moved inode_sync_wait() from end_writeback() it doesn't make sense to call the function end_writeback() anymore. Rename it to clear_inode() which well says what the function really does - set I_CLEAR flag. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
2012-03-28Merge branch 'for_linus' of ↵Linus Torvalds5-48/+63
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull ext3, UDF, and quota fixes from Jan Kara: "A couple of ext3 & UDF fixes and also one improvement in quota locking." * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: ext3: fix start and len arguments handling in ext3_trim_fs() udf: Fix deadlock in udf_release_file() udf: Fix file entry logicalBlocksRecorded udf: Fix handling of i_blocks quota: Make quota code not call tty layer with dqptr_sem held udf: Init/maintain file entry checkpoint field ext3: Update ctime in ext3_splice_branch() only when needed ext3: Don't call dquot_free_block() if we don't update anything udf: Remove unnecessary OOM messages
2012-03-21Merge branch 'for-linus' of ↵Linus Torvalds2-15/+4
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs pile 1 from Al Viro: "This is _not_ all; in particular, Miklos' and Jan's stuff is not there yet." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (64 commits) ext4: initialization of ext4_li_mtx needs to be done earlier debugfs-related mode_t whack-a-mole hfsplus: add an ioctl to bless files hfsplus: change finder_info to u32 hfsplus: initialise userflags qnx4: new helper - try_extent() qnx4: get rid of qnx4_bread/qnx4_getblk take removal of PF_FORKNOEXEC to flush_old_exec() trim includes in inode.c um: uml_dup_mmap() relies on ->mmap_sem being held, but activate_mm() doesn't hold it um: embed ->stub_pages[] into mmu_context gadgetfs: list_for_each_safe() misuse ocfs2: fix leaks on failure exits in module_init ecryptfs: make register_filesystem() the last potential failure exit ntfs: forgets to unregister sysctls on register_filesystem() failure logfs: missing cleanup on register_filesystem() failure jfs: mising cleanup on register_filesystem() failure make configfs_pin_fs() return root dentry on success configfs: configfs_create_dir() has parent dentry in dentry->d_parent configfs: sanitize configfs_create() ...
2012-03-20switch open-coded instances of d_make_root() to new helperAl Viro1-2/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-03-20vfs: check i_nlink limits in vfs_{mkdir,rename_dir,link}Al Viro2-13/+3
New field of struct super_block - ->s_max_links. Maximal allowed value of ->i_nlink or 0; in the latter case all checks still need to be done in ->link/->mkdir/->rename instances. Note that this limit applies both to directoris and to non-directories. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-03-20udf: remove the second argument of k[un]map_atomic()Cong Wang1-2/+2
Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: Cong Wang <amwang@redhat.com>
2012-03-10udf: Fix deadlock in udf_release_file()Jan Kara1-2/+0
udf_release_file() can be called from munmap() path with mmap_sem held. Thus we cannot take i_mutex there because that ranks above mmap_sem. Luckily, i_mutex is not needed in udf_release_file() anymore since protection by i_data_sem is enough to protect from races with write and truncate. Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-02-29udf: Fix deadlock in udf_release_file()Jan Kara1-2/+0
udf_release_file() can be called from munmap() path with mmap_sem held. Thus we cannot take i_mutex there because that ranks above mmap_sem. Luckily, i_mutex is not needed in udf_release_file() anymore since protection by i_data_sem is enough to protect from races with write and truncate. CC: stable@vger.kernel.org (2.6.38 & later) Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
2012-02-29udf: Fix file entry logicalBlocksRecordedSteve Nickel1-6/+10
ECMA 1.67 requires setting logicalBlocksRecorded to zero if the file has no extents. This should be checked in udf_update_inode(). udf_fill_inode() will then take care of itself. Signed-off-by: Steven P. Nickel <snickel@focusinfo.com> Signed-off-by: Jan Kara <jack@suse.cz>
2012-02-29udf: Fix handling of i_blocksJan Kara1-38/+46
Commit 36350462 removed unused quota support from UDF. As an unfortunate sideeffect it also removed updates of i_blocks so all files had i_block == 0. Fix the problem by returning updates of file space back to UDF allocation and freeing functions. Signed-off-by: Jan Kara <jack@suse.cz>
2012-02-29udf: Init/maintain file entry checkpoint fieldSteve Nickel3-0/+6
In accordance with ECMA 1.67 Part 4, 14.9.15, the checkpoint field should be initialized to 1 at creation. (Zero is *not* a valid value.) Signed-off-by: Steven P. Nickel <snickel@focusinfo.com> Signed-off-by: Jan Kara <jack@suse.cz>
2012-02-29udf: Remove unnecessary OOM messagesJoe Perches1-4/+1
Per call site OOM messages are unnecessary. k.alloc and v.alloc failures use dump_stack(). Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jan Kara <jack@suse.cz>
2012-01-09Merge branch 'for_linus' of ↵Linus Torvalds4-31/+52
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: ext2/3/4: delete unneeded includes of module.h ext{3,4}: Fix potential race when setversion ioctl updates inode udf: Mark LVID buffer as uptodate before marking it dirty ext3: Don't warn from writepage when readonly inode is spotted after error jbd: Remove j_barrier mutex reiserfs: Force inode evictions before umount to avoid crash reiserfs: Fix quota mount option parsing udf: Treat symlink component of type 2 as / udf: Fix deadlock when converting file from in-ICB one to normal one udf: Cleanup calling convention of inode_getblk() ext2: Fix error handling on inode bitmap corruption ext3: Fix error handling on inode bitmap corruption ext3: replace ll_rw_block with other functions ext3: NULL dereference in ext3_evict_inode() jbd: clear revoked flag on buffers before a new transaction started ext3: call ext3_mark_recovery_complete() when recovery is really needed
2012-01-09udf: Mark LVID buffer as uptodate before marking it dirtyJan Kara1-0/+6
When we hit EIO while writing LVID, the buffer uptodate bit is cleared. This then results in an anoying warning from mark_buffer_dirty() when we write the buffer again. So just set uptodate flag unconditionally. Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
2012-01-09udf: Treat symlink component of type 2 as /Jan Kara1-4/+10
Currently, we ignore symlink component of type 2. But mkisofs and other OS' seem to treat it as / so do the same for compatibility. Reported-by: "Gábor S." <otnaccess@hotmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
2012-01-09udf: Fix deadlock when converting file from in-ICB one to normal oneJan Kara2-6/+21
During BKL removal in 2.6.38, conversion of files from in-ICB format to normal format got broken. We call ->writepage with i_data_sem held but udf_get_block() also acquires i_data_sem thus creating A-A deadlock. We fix the problem by dropping i_data_sem before calling ->writepage() which is safe since i_mutex still protects us against any changes in the file. Also fix pagelock - i_data_sem lock inversion in udf_expand_file_adinicb() by dropping i_data_sem before calling find_or_create_page(). CC: stable@kernel.org Reported-by: Matthias Matiak <netzpython@mail-on.us> Tested-by: Matthias Matiak <netzpython@mail-on.us> Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
2012-01-09udf: Cleanup calling convention of inode_getblk()Jan Kara1-21/+15
inode_getblk() always returned NULL and passed results in its parameters. Make the function return something useful - found block number. Signed-off-by: Jan Kara <jack@suse.cz>
2012-01-06vfs: switch ->show_options() to struct dentry *Al Viro1-3/+3
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03udf: propagate umode_tAl Viro5-15/+15
note re mount options: fmask and dmask are explicitly truncated to 12bit, UDF_INVALID_MODE just needs to be guaranteed to differ from any such value. And umask is used only in &= with umode_t, so we ignore other bits anyway. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03switch ->mknod() to umode_tAl Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03switch ->create() to umode_tAl Viro1-1/+1
vfs_create() ignores everything outside of 16bit subset of its mode argument; switching it to umode_t is obviously equivalent and it's the only caller of the method Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03switch vfs_mkdir() and ->mkdir() to umode_tAl Viro1-1/+1
vfs_mkdir() gets int, but immediately drops everything that might not fit into umode_t and that's the only caller of ->mkdir()... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: fix the stupidity with i_dentry in inode destructorsAl Viro1-1/+0
Seeing that just about every destructor got that INIT_LIST_HEAD() copied into it, there is no point whatsoever keeping this INIT_LIST_HEAD in inode_init_once(); the cost of taking it into inode_init_always() will be negligible for pipes and sockets and negative for everything else. Not to mention the removal of boilerplate code from ->destroy_inode() instances... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-11-02Merge branch 'for-next' of ↵Linus Torvalds2-12/+11
git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue: vfs: add d_prune dentry operation vfs: protect i_nlink filesystems: add set_nlink() filesystems: add missing nlink wrappers logfs: remove unnecessary nlink setting ocfs2: remove unnecessary nlink setting jfs: remove unnecessary nlink setting hypfs: remove unnecessary nlink setting vfs: ignore error on forced remount readlinkat: ensure we return ENOENT for the empty pathname for normal lookups vfs: fix dentry leak in simple_fill_super()
2011-11-02Merge branch 'for_linus' of ↵Linus Torvalds13-236/+230
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: udf: Cleanup metadata flags handling udf: Skip mirror metadata FE loading when metadata FE is ok ext3: Allow quota file use root reservation udf: Remove web reference from UDF MAINTAINERS entry quota: Drop path reference on error exit from quotactl udf: Neaten udf_debug uses udf: Neaten logging output, use vsprintf extension %pV udf: Convert printks to pr_<level> udf: Rename udf_warning to udf_warn udf: Rename udf_error to udf_err udf: Promote some debugging messages to udf_error ext3: Remove the obsolete broken EXT3_IOC32_WAIT_FOR_READONLY. udf: Add readpages support for udf. ext3/balloc.c: local functions should be static ext2: fix the outdated comment in ext2_nfs_get_inode() ext3: remove deprecated oldalloc fs/ext3/balloc.c: delete useless initialization fs/ext2/balloc.c: delete useless initialization ext3: fix message in ext3_remount for rw-remount case ext3: Remove i_mutex from ext3_sync_file() Fix up trivial (printf format cleanup) conflicts in fs/udf/udfdecl.h
2011-11-02filesystems: add set_nlink()Miklos Szeredi2-5/+7
Replace remaining direct i_nlink updates with a new set_nlink() updater function. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2011-11-02filesystems: add missing nlink wrappersMiklos Szeredi1-7/+4
Replace direct i_nlink updates with the respective updater function (inc_nlink, drop_nlink, clear_nlink, inode_dec_link_count). Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2011-10-31treewide: use __printf not __attribute__((format(printf,...)))Joe Perches1-2/+2
Standardize the style for compiler based printf format verification. Standardized the location of __printf too. Done via script and a little typing. $ grep -rPl --include=*.[ch] -w "__attribute__" * | \ grep -vP "^(tools|scripts|include/linux/compiler-gcc.h)" | \ xargs perl -n -i -e 'local $/; while (<>) { s/\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf\s*,\s*(.+)\s*,\s*(.+)\s*\)\s*\)\s*\)/__printf($1, $2)/g ; print; }' [akpm@linux-foundation.org: revert arch bits] Signed-off-by: Joe Perches <joe@perches.com> Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-31udf: Cleanup metadata flags handlingJan Kara3-8/+10
Use simple ->s_flags variable instead of u8 variable for each flag. Signed-off-by: Jan Kara <jack@suse.cz>
2011-10-31udf: Skip mirror metadata FE loading when metadata FE is okNamjae Jeon4-36/+43
It is not necessary to load mirror metadata FE when metadata FE is OK. So try to read it only the first time udf_get_pblock_meta25() fails to map the block from metadata FE. Signed-off-by: Ashish Sangwan <ashishsangwan2@gmail.com> Signed-off-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
2011-10-31udf: Neaten udf_debug usesJoe Perches6-59/+50
Just whitespace and argument alignment. Introduce some checkpatch warnings that deserve to be ignored. Reviewed-by: NamJae Jeon <linkinjeon@gmail.com> Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jan Kara <jack@suse.cz>
2011-10-31udf: Neaten logging output, use vsprintf extension %pVJoe Perches1-11/+17
Use %pV and remove a static buffer to save some text space and fix possible issues when several processes call error reporting function in parallel. Also change error level from KERN_CRIT to KERN_ERR. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jan Kara <jack@suse.cz>
2011-10-31udf: Convert printks to pr_<level>Joe Perches7-98/+83
Use the current logging styles. Convert a few printks that should have been udf_warn and udf_err. Coalesce formats. Add #define pr_fmt. Move an #include "udfdecls.h" above other includes in udftime.c so pr_fmt works correctly. Strip prefixes from conversions as appropriate. Reorder logging definitions in udfdecl.h Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jan Kara <jack@suse.cz>
2011-10-10udf: Rename udf_warning to udf_warnJoe Perches4-20/+15
Rename udf_warning to udf_warn for consistency with normal logging uses of pr_warn. Rename function udf_warning to _udf_warn. Remove __func__ from uses and move __func__ to a new udf_warn macro that calls _udf_warn. Add \n's to uses of udf_warn, remove \n from _udf_warn. Coalesce formats. Reviewed-by: NamJae Jeon <linkinjeon@gmail.com> Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jan Kara <jack@suse.cz>
2011-10-10udf: Rename udf_error to udf_errJoe Perches3-29/+23
Rename udf_error to udf_err for consistency with normal logging uses of pr_err. Rename function udf_err to _udf_err. Remove __func__ from uses and move __func__ to a new udf_err macro that calls _udf_err. Some of the udf_error uses had \n terminations, some did not so standardize \n's to udf_err uses, remove \n from _udf_err function. Coalesce udf_err formats. One message prefixed with udf_read_super is now prefixed with udf_fill_super. Reviewed-by: NamJae Jeon <linkinjeon@gmail.com> Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jan Kara <jack@suse.cz>
2011-10-10udf: Promote some debugging messages to udf_errorJoe Perches3-10/+18
If there is a problem with a scratched disc or loader, it's valuable to know which error occurred. Convert some debug messages to udf_error, neaten those messages too. Add the calculated tag checksum and the read checksum to error message. Make udf_error a public function and move the logging prototypes together. Original-patch-by: NamJae Jeon <linkinjeon@gmail.com> Reviewed-by: NamJae Jeon <linkinjeon@gmail.com> Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jan Kara <jack@suse.cz>
2011-10-06udf: Add readpages support for udf.Namjae Jeon1-1/+9
Use mpage_readpages() instead of multiple calls to udf_readpage() to reduce the CPU utilization and make performance higher. Signed-off-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
2011-07-20switch udf_ioctl() to inode_permission()Al Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-05-28udf: remove unnecessary dentry_unhash from rmdir, dir renameSage Weil1-5/+0
udf does not have problems with references to unlinked directories. CC: Jan Kara <jack@suse.cz> Signed-off-by: Sage Weil <sage@newdream.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-05-26vfs: push dentry_unhash on rename_dir into file systemsSage Weil1-0/+3
Only a few file systems need this. Start by pushing it down into each rename method (except gfs2 and xfs) so that it can be dealt with on a per-fs basis. Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sage Weil <sage@newdream.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-05-26vfs: push dentry_unhash on rmdir into file systemsSage Weil1-0/+2
Only a few file systems need this. Start by pushing it down into each fs rmdir method (except gfs2 and xfs) so it can be dealt with on a per-fs basis. This does not change behavior for any in-tree file systems. Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sage Weil <sage@newdream.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-24Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds2-2/+0
* 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block: (65 commits) Documentation/iostats.txt: bit-size reference etc. cfq-iosched: removing unnecessary think time checking cfq-iosched: Don't clear queue stats when preempt. blk-throttle: Reset group slice when limits are changed blk-cgroup: Only give unaccounted_time under debug cfq-iosched: Don't set active queue in preempt block: fix non-atomic access to genhd inflight structures block: attempt to merge with existing requests on plug flush block: NULL dereference on error path in __blkdev_get() cfq-iosched: Don't update group weights when on service tree fs: assign sb->s_bdi to default_backing_dev_info if the bdi is going away block: Require subsystems to explicitly allocate bio_set integrity mempool jbd2: finish conversion from WRITE_SYNC_PLUG to WRITE_SYNC and explicit plugging jbd: finish conversion from WRITE_SYNC_PLUG to WRITE_SYNC and explicit plugging fs: make fsync_buffers_list() plug mm: make generic_writepages() use plugging blk-cgroup: Add unaccounted time to timeslice_used. block: fixup plugging stubs for !CONFIG_BLOCK block: remove obsolete comments for blkdev_issue_zeroout. blktrace: Use rq->cmd_flags directly in blk_add_trace_rq. ... Fix up conflicts in fs/{aio.c,super.c}
2011-03-23udf: use little-endian bitopsAkinobu Mita1-5/+4
As a preparation for removing ext2 non-atomic bit operations from asm/bitops.h. This converts ext2 non-atomic bit operations to little-endian bit operations. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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