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path: root/fs/jfs/jfs_imap.c
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2013-06-05jfs: Update jfs_errorJoe Perches
Use a more current logging style. Add __printf format and argument verification. Remove embedded function names from formats. Add %pf, __builtin_return_address(0) to jfs_error. Add newlines to formats for kernel style consistency. (One format already had an erroneous newline) Coalesce formats and align arguments. Object size reduced ~1KiB. $ size fs/jfs/built-in.o* text data bss dec hex filename 201891 35488 63936 301315 49903 fs/jfs/built-in.o.new 202821 35488 64192 302501 49da5 fs/jfs/built-in.o.old Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
2013-01-07jfs: avoid undefined behavior from left-shifting by 32 bitsNickolai Zeldovich
Shifting a 32-bit int by 32 bits is undefined behavior in C, and results in different behavior on different architectures (e.g., x86 and PowerPC). diAlloc() in fs/jfs/jfs_imap.c computes a mask using 0xffffffffu<<(32-bitno), which can left-shift by 32 bits. To avoid unexpected behavior, explicitly check for bitno==0 and use a 0 mask. Signed-off-by: Nickolai Zeldovich <nickolai@csail.mit.edu> Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
2012-09-21userns: Convert jfs to use kuid/kgid where appropriateEric W. Biederman
Cc: Dave Kleikamp <shaggy@kernel.org> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2011-11-02filesystems: add set_nlink()Miklos Szeredi
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>
2011-06-20JFS: Don't save agno in the inodeDave Kleikamp
Resizing the file system can result in an in-memory inode being remapped to a different aggregate group (AG). A cached AG number can cause problems when trying to free or allocate inodes. Instead, save the IAG's agstart address and calculate the agno when we need it. Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
2011-06-20jfs: Update agstart when resizing volumeDave Kleikamp
A comment indicates that the IAG's agstart does not need to be updated since it will always point to a block in the same aggregate group, but jfs_fsck isn't so forgiving and reports it as an error. I'm fixing this in jfsutils as well, so either a new kernel or new utilities will be sufficient to fix the problem. Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
2011-03-31Fix common misspellingsLucas De Marchi
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2010-10-25list.h: new helper - hlist_add_fake()Al Viro
Make node look as if it was on hlist, with hlist_del() working correctly. Usable without any locking... Convert a couple of places where we want to do that to inode->i_hash. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo
implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2009-05-23jfs: Add missing mutex_unlock call to error pathDave Kleikamp
Jan Kucera found an missing call to mutex_unlock() with his static code checker. It's an unlikely error path to hit in the real world, but it should be fixed. Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Reported-by: Jan Kucera <kucera.jan.cz@gmail.com>
2009-01-09jfs: clean up a dangling commentDave Kleikamp
viro cleaned up an hlist hack, but left a comment where it no longer belongs. Combine the old comment with his new one. Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2009-01-05fix the treatment of jfs special inodesAl Viro
We used to put them on a single list, without any locking. Racy. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-05-28JFS: diAlloc() should return -EIO rather than EIOLi Zefan
The comment above the function says one of its return value is -EIO, and also the caller of diAlloc() checks for -EIO: struct inode *ialloc(struct inode *parent, umode_t mode) { ... rc = diAlloc(parent, S_ISDIR(mode), inode); if (rc) { jfs_warn("ialloc: diAlloc returned %d!", rc); if (rc == -EIO) make_bad_inode(inode); ... Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2008-02-13jfs: le*_add_cpu conversionMarcin Slusarz
replace all: little_endian_variable = cpu_to_leX(leX_to_cpu(little_endian_variable) + expression_in_cpu_byteorder); with: leX_add_cpu(&little_endian_variable, expression_in_cpu_byteorder); generated with semantic patch Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Cc: jfs-discussion@lists.sourceforge.net
2008-01-03JFS: Remove defconfig ptr comparison to 0Joe Perches
Remove sparse warning: Using plain integer as NULL pointer Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2007-06-13JFS: Update print_hex_dump() syntaxDave Kleikamp
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2007-06-06JFS: use print_hex_dump() rather than private dump_mem() functionDave Kleikamp
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2007-06-06JFS: Whitespace cleanup and remove some dead codeDave Kleikamp
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2007-05-09Fix occurrences of "the the "Michael Opdenacker
Signed-off-by: Michael Opdenacker <michael@free-electrons.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-04-25Copy i_flags to jfs inode flags on writeDave Kleikamp
This mirrors Jan Kara's patches for ext3. This patch makes sure that changes made to inode->i_flags are reflected on disk for jfs. It also moves a call of jfs_set_inode_flags() to be more consistent with where jfs_get_inode_flags() is called. Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2007-01-09JFS: Add lockdep annotationsDave Kleikamp
Yeah, it's about time. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2006-12-13[PATCH] getting rid of all casts of k[cmz]alloc() callsRobert P. J. Day
Run this: #!/bin/sh for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do echo "De-casting $f..." perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f done And then go through and reinstate those cases where code is casting pointers to non-pointers. And then drop a few hunks which conflicted with outstanding work. Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Greg KH <greg@kroah.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Karsten Keil <kkeil@suse.de> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Ian Kent <raven@themaw.net> Cc: Steven French <sfrench@us.ibm.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Neil Brown <neilb@cse.unsw.edu.au> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-13JFS: pageno needs to be longDave Kleikamp
diRead and diWrite are representing the page number as an unsigned int. This causes file system corruption on volumes larger than 16TB. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2006-10-02JFS: White space cleanupDave Kleikamp
Removed trailing spaces & tabs, and spaces preceding tabs. Also a couple very minor comment cleanups. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> (cherry picked from f74156539964d7b3d5164fdf8848e6a682f75b97 commit)
2006-10-01[PATCH] fs/jfs: Conversion to generic booleanRichard Knutsson
Conversion of booleans to: generic-boolean.patch (2006-08-23) Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se> Cc: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-27[PATCH] inode-diet: Eliminate i_blksize from the inode structureTheodore Ts'o
This eliminates the i_blksize field from struct inode. Filesystems that want to provide a per-inode st_blksize can do so by providing their own getattr routine instead of using the generic_fillattr() function. Note that some filesystems were providing pretty much random (and incorrect) values for i_blksize. [bunk@stusta.de: cleanup] [akpm@osdl.org: generic_fillattr() fix] Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-09JFS: add uid, gid, and umask mount optionsDave Kleikamp
OS/2 doesn't initialize the uid, gid, or unix-style permission bits. The uid, gid, & umask mount options perform pretty much like those for the fat file system, overriding what is stored on disk. This is useful for users sharing the file system with OS/2. I implemented a little feature so that if you mask the execute bit, it will be re-enabled on directories when the appropriate read bit is unmasked. I didn't want to implement an fmask & dmask option. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2006-03-08JFS: Take logsync lock before testing mp->lsnDave Kleikamp
This fixes a race where lsn could be cleared before taking the lock Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2006-01-24JFS: semaphore to mutex conversion.Ingo Molnar
the conversion was generated via scripts, and the result was validated automatically via a script as well. build and boot tested. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2006-01-08[PATCH] Fix and add EXPORT_SYMBOL(filemap_write_and_wait)OGAWA Hirofumi
This patch add EXPORT_SYMBOL(filemap_write_and_wait) and use it. See mm/filemap.c: And changes the filemap_write_and_wait() and filemap_write_and_wait_range(). Current filemap_write_and_wait() doesn't wait if filemap_fdatawrite() returns error. However, even if filemap_fdatawrite() returned an error, it may have submitted the partially data pages to the device. (e.g. in the case of -ENOSPC) <quotation> Andrew Morton writes, If filemap_fdatawrite() returns an error, this might be due to some I/O problem: dead disk, unplugged cable, etc. Given the generally crappy quality of the kernel's handling of such exceptions, there's a good chance that the filemap_fdatawait() will get stuck in D state forever. </quotation> So, this patch doesn't wait if filemap_fdatawrite() returns the -EIO. Trond, could you please review the nfs part? Especially I'm not sure, nfs must use the "filemap_fdatawrite(inode->i_mapping) == 0", or not. Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-03JFS: make special inodes play nicely with page balancingDave Kleikamp
This patch fixes up a few problems with jfs's reserved inodes. 1. There is no need for the jfs code setting the I_DIRTY bits in i_state. I am ashamed that the code ever did this, and surprised it hasn't been noticed until now. 2. Make sure special inodes are on an inode hash list. If the inodes are unhashed, __mark_inode_dirty will fail to put the inode on the superblock's dirty list, and the data will not be flushed under memory pressure. 3. Force writing journal data to disk when metapage_writepage is unable to write a metadata page due to pending journal I/O. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2005-06-27JFS: Code cleanup - getting rid of never-used debug codeDave Kleikamp
I'm finally getting around to cleaning out debug code that I've never used. There has always been code ifdef'ed out by _JFS_DEBUG_DMAP, _JFS_DEBUG_IMAP, _JFS_DEBUG_DTREE, and _JFS_DEBUG_XTREE, which I have personally never used, and I doubt that anyone has since the design stage back in OS/2. There is also a function, xtGather, that has never been used, and I don't know why it was ever there. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2005-05-04JFS: fix sparse warnings by moving extern declarations to headersDave Kleikamp
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2005-05-02[PATCH] JFS: Support page sizes greater than 4KDave Kleikamp
jfs has never worked on architecutures where the page size was not 4K. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-02[PATCH] JFS: Simplify creation of new iagDave Kleikamp
JFS was creating a new IAG (inode aggregate group) in one address space, and afterwards, accessing it from another. This could lead to complications when cache pages contain more than one page of jfs metadata. This patch causes the IAG to be initialized in the same address space that it is subsequently accessed with. This also elimitates an I/O, but IAG's aren't created too often. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!