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path: root/fs/udf/namei.c
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2010-10-25new helper: ihold()Al Viro1-1/+1
Clones an existing reference to inode; caller must already hold one. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-05-24udf: Remove dead quota codeJan Kara1-20/+0
Quota on UDF is non-functional at least since 2.6.16 (I'm too lazy to do more archeology) because it does not provide .quota_write and .quota_read functions and thus quotaon(8) just returns EINVAL. Since nobody complained for all those years and quota support is not even in UDF standard just nuke it. Signed-off-by: Jan Kara <jack@suse.cz>
2010-05-21udf: replace inode uid,gid,mode init with helperDmitry Monakhov1-8/+2
Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-04-08udf: add speciffic ->setattr callbackDmitry Monakhov1-1/+8
generic setattr not longer responsible for quota transfer. use udf_setattr for all udf's inodes. Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Jan Kara <jack@suse.cz>
2010-03-05Merge branch 'for_linus' of ↵Linus Torvalds1-0/+17
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: (33 commits) quota: stop using QUOTA_OK / NO_QUOTA dquot: cleanup dquot initialize routine dquot: move dquot initialization responsibility into the filesystem dquot: cleanup dquot drop routine dquot: move dquot drop responsibility into the filesystem dquot: cleanup dquot transfer routine dquot: move dquot transfer responsibility into the filesystem dquot: cleanup inode allocation / freeing routines dquot: cleanup space allocation / freeing routines ext3: add writepage sanity checks ext3: Truncate allocated blocks if direct IO write fails to update i_size quota: Properly invalidate caches even for filesystems with blocksize < pagesize quota: generalize quota transfer interface quota: sb_quota state flags cleanup jbd: Delay discarding buffers in journal_unmap_buffer ext3: quota_write cross block boundary behaviour quota: drop permission checks from xfs_fs_set_xstate/xfs_fs_set_xquota quota: split out compat_sys_quotactl support from quota.c quota: split out netlink notification support from quota.c quota: remove invalid optimization from quota_sync_all ... Fixed trivial conflicts in fs/namei.c and fs/ufs/inode.c
2010-03-05dquot: cleanup dquot initialize routineChristoph Hellwig1-9/+9
Get rid of the initialize dquot operation - it is now always called from the filesystem and if a filesystem really needs it's own (which none currently does) it can just call into it's own routine directly. Rename the now static low-level dquot_initialize helper to __dquot_initialize and vfs_dq_init to dquot_initialize to have a consistent namespace. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
2010-03-05dquot: move dquot initialization responsibility into the filesystemChristoph Hellwig1-0/+17
Currently various places in the VFS call vfs_dq_init directly. This means we tie the quota code into the VFS. Get rid of that and make the filesystem responsible for the initialization. For most metadata operations this is a straight forward move into the methods, but for truncate and open it's a bit more complicated. For truncate we currently only call vfs_dq_init for the sys_truncate case because open already takes care of it for ftruncate and open(O_TRUNC) - the new code causes an additional vfs_dq_init for those which is harmless. For open the initialization is moved from do_filp_open into the open method, which means it happens slightly earlier now, and only for regular files. The latter is fine because we don't need to initialize it for operations on special files, and we already do it as part of the namespace operations for directories. Add a dquot_file_open helper that filesystems that support generic quotas can use to fill in ->open. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
2010-03-03sanitize const/signedness for udfAl Viro1-10/+10
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-12-14udf: Avoid IO in udf_clear_inodeJan Kara1-10/+28
It is not very good to do IO in udf_clear_inode. First, VFS does not really expect inode to become dirty there and thus we have to write it ourselves, second, memory reclaim gets blocked waiting for IO when it does not really expect it, third, the IO pattern (e.g. on umount) resulting from writes in udf_clear_inode is bad and it slows down writing a lot. The reason why UDF needed to do IO in udf_clear_inode is that UDF standard mandates extent length to exactly match inode size. But when we allocate extents to a file or directory, we don't really know what exactly the final file size will be and thus temporarily set it to block boundary and later truncate it to exact length in udf_clear_inode. Now, this is changed to truncate to final file size in udf_release_file for regular files. For directories and symlinks, we do the truncation at the moment when learn what the final file size will be. Signed-off-by: Jan Kara <jack@suse.cz>
2009-09-14udf: Remove wrong assignment in udf_symlinkJan Kara1-1/+0
Recomputation of the pointer was wrong (it should have been just increment). Luckily, we never use the computed value. Remove it. Signed-off-by: Jan Kara <jack@suse.cz>
2009-04-02Fix the udf code not to pass structs on stack where possible.Pekka Enberg1-14/+18
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Jan Kara <jack@suse.cz>
2009-04-02Remove struct typedefs from fs/udf/ecma_167.h et al.Pekka Enberg1-27/+27
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Jan Kara <jack@suse.cz>
2008-11-14CRED: Wrap task credential accesses in the UDF filesystemDavid Howells1-1/+1
Wrap access to task credentials so that they can be separated more easily from the task_struct during the introduction of COW creds. Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id(). Change some task->e?[ug]id to task_e?[ug]id(). In some places it makes more sense to use RCU directly rather than a convenient wrapper; these will be addressed by later patches. Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: James Morris <jmorris@namei.org> Acked-by: Serge Hallyn <serue@us.ibm.com> Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: James Morris <jmorris@namei.org>
2008-10-23[PATCH] get rid of on-stack dentry in udfAl Viro1-15/+11
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] switch all filesystems over to d_obtain_aliasChristoph Hellwig1-15/+2
Switch all users of d_alloc_anon to d_obtain_alias. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-05-08Merge branch 'for_linus' of ↵Linus Torvalds1-4/+141
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6: udf: Fix memory corruption when fs mounted with noadinicb option udf: Make udf exportable udf: fs/udf/partition.c:udf_get_pblock() mustn't be inline
2008-05-07udf: Fix memory corruption when fs mounted with noadinicb optionJan Kara1-2/+3
When UDF filesystem is mounted with noadinicb mount option, it happens that we extend an empty directory with a block. A code in udf_add_entry() didn't count with this possibility and used uninitialized data leading to memory and filesystem corruption. Add a check whether file already has some extents before operating on them. Signed-off-by: Jan Kara <jack@suse.cz>
2008-05-07udf: Make udf exportableRasmus Rohde1-2/+138
Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Rasmus Rohde <rohde@duff.dk> Signed-off-by: Jan Kara <jack@suse.cz>
2008-04-28udf: fix sparse warning in namei.cHarvey Harrison1-4/+4
Let's use bsize instead. fs/udf/namei.c:960:12: warning: symbol 'elen' shadows an earlier one fs/udf/namei.c:937:15: originally declared here Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Jan Kara <jack@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-17udf: use crc_itu_t from lib instead of udf_crcBob Copeland1-11/+10
As pointed out by Sergey Vlasov, UDF implements its own version of the CRC ITU-T V.41. Convert it to use the one in the library. Signed-off-by: Bob Copeland <me@bobcopeland.com> Cc: Sergey Vlasov <vsu@altlinux.ru> Signed-off-by: Jan Kara <jack@suse.cz>
2008-04-17udf: Remove declarations of arrays of size UDF_NAME_LEN (256 bytes)Jan Kara1-62/+66
There are several places in UDF where we declared temporary arrays of UDF_NAME_LEN bytes on stack. This is not nice to stack usage so this patch changes those places to use kmalloc() instead. Also clean up bail-out paths in those functions when we are changing them. Signed-off-by: Jan Kara <jack@suse.cz>
2008-04-17udf: Remove checking of existence of filename in udf_add_entry()Jan Kara1-37/+1
We don't have to check whether a directory entry already exists in a directory when creating a new one since we've already checked that earlier by lookup and we are holding directory i_mutex all the time. Signed-off-by: Jan Kara <jack@suse.cz>
2008-04-17udf: kill useless file header comments for vfs method implementationsChristoph Hellwig1-33/+0
There's not need to document vfs method invocation rules, we have Documentation/filesystems/vfs.txt and Documentation/filesystems/Locking for that. Also a lot of these comments where either plain wrong or horrible out of date. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
2008-02-08udf: fix adding entry to a directoryJan Kara1-9/+10
When adding directory entry to a directory, we have to properly increase length of the last extent. Handle this similarly as extending regular files - make extents always have size multiple of block size (it will be truncated down to proper size in udf_clear_inode()). Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08udf: cleanup directory offset handlingJan Kara1-22/+17
Position in directory returned by readdir is offset of directory entry divided by four (don't ask me why). Make this conversion only when reading f_pos from userspace / writing it there and internally work in bytes. It makes things more easily readable and also fixes a bug (we forgot to divide length of the entry by 4 when advancing f_pos in udf_add_entry()). Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08udf: fix signedness issueMarcin Slusarz1-1/+1
sparse generated: fs/udf/namei.c:896:15: originally declared here fs/udf/namei.c:1147:41: warning: incorrect type in argument 3 (different signedness) fs/udf/namei.c:1147:41: expected int *offset fs/udf/namei.c:1147:41: got unsigned int *<noident> fs/udf/namei.c:1152:78: warning: incorrect type in argument 3 (different signedness) fs/udf/namei.c:1152:78: expected int *offset fs/udf/namei.c:1152:78: got unsigned int *<noident> Signed-off-by: Marcin Slusarz <marcin.slusarz@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>
2008-02-08udf: cache struct udf_inode_infoMarcin Slusarz1-51/+61
cache UDF_I(struct inode *) return values when there are at least 2 uses in one function Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Acked-by: Jan Kara <jack@suse.cz> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08udf: remove UDF_I_* macros and open code themMarcin Slusarz1-53/+57
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Acked-by: Jan Kara <jack@suse.cz> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08udf: create common function for tag checksummingMarcin Slusarz1-8/+1
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Acked-by: Jan Kara <jack@suse.cz> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08udf: fix coding styleMarcin Slusarz1-119/+179
fix coding style errors found by checkpatch: - assignments in if conditions - braces {} around single statement blocks - no spaces after commas - printks without KERN_* - lines longer than 80 characters - spaces between "type *" and variable name before: 192 errors, 561 warnings, 8987 lines checked after: 1 errors, 38 warnings, 9468 lines checked Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Cc: Jan Kara <jack@suse.cz> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08udf: remove some ugly macrosMarcin Slusarz1-10/+14
remove macros: - UDF_SB_PARTMAPS - UDF_SB_PARTTYPE - UDF_SB_PARTROOT - UDF_SB_PARTLEN - UDF_SB_PARTVSN - UDF_SB_PARTNUM - UDF_SB_TYPESPAR - UDF_SB_TYPEVIRT - UDF_SB_PARTFUNC - UDF_SB_PARTFLAGS - UDF_SB_VOLIDENT - UDF_SB_NUMPARTS - UDF_SB_PARTITION - UDF_SB_SESSION - UDF_SB_ANCHOR - UDF_SB_LASTBLOCK - UDF_SB_LVIDBH - UDF_SB_LVID - UDF_SB_UMASK - UDF_SB_GID - UDF_SB_UID - UDF_SB_RECORDTIME - UDF_SB_SERIALNUM - UDF_SB_UDFREV - UDF_SB_FLAGS - UDF_SB_VAT - UDF_UPDATE_UDFREV - UDF_SB_FREE and open code them convert UDF_SB_LVIDIU macro to udf_sb_lvidiu function rename some struct udf_sb_info fields: - s_volident to s_volume_ident - s_lastblock to s_last_block - s_lvidbh to s_lvid_bh - s_recordtime to s_record_time - s_serialnum to s_serial_number; - s_vat to s_vat_inode; Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Cc: Ben Fennema <bfennema@falcon.csc.calpoly.edu> Cc: Jan Kara <jack@suse.cz> Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21UDF: coding style conversion - lindent fixupsCyrill Gorcunov1-229/+181
This patch fixes up sources after conversion by Lindent. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Cc: Jan Kara <jack@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19UDF: coding style conversion - lindentCyrill Gorcunov1-375/+345
This patch converts UDF coding style to kernel coding style using Lindent. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Cc: Jan Kara <jack@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21Detach sched.h from mm.hAlexey Dobriyan1-0/+1
First thing mm.h does is including sched.h solely for can_do_mlock() inline function which has "current" dereference inside. By dealing with can_do_mlock() mm.h can be detached from sched.h which is good. See below, why. This patch a) removes unconditional inclusion of sched.h from mm.h b) makes can_do_mlock() normal function in mm/mlock.c c) exports can_do_mlock() to not break compilation d) adds sched.h inclusions back to files that were getting it indirectly. e) adds less bloated headers to some files (asm/signal.h, jiffies.h) that were getting them indirectly Net result is: a) mm.h users would get less code to open, read, preprocess, parse, ... if they don't need sched.h b) sched.h stops being dependency for significant number of files: on x86_64 allmodconfig touching sched.h results in recompile of 4083 files, after patch it's only 3744 (-8.3%). Cross-compile tested on all arm defconfigs, all mips defconfigs, all powerpc defconfigs, alpha alpha-up arm i386 i386-up i386-defconfig i386-allnoconfig ia64 ia64-up m68k mips parisc parisc-up powerpc powerpc-up s390 s390-up sparc sparc-up sparc64 sparc64-up um-x86_64 x86_64 x86_64-up x86_64-defconfig x86_64-allnoconfig as well as my two usual configs. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08udf: use get_bh()Jan Kara1-68/+68
Make UDF use get_bh() instead of directly accessing b_count and use brelse() instead of udf_release_data() which does just brelse()... Signed-off-by: Jan Kara <jack@suse.cz> Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08UDF: introduce struct extent_positionJan Kara1-61/+61
Introduce a structure extent_position to store a position of an extent and the corresponding buffer_head in one place. Signed-off-by: Jan Kara <jack@suse.cz> Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08udf: use sector_t and loff_t for file offsetsJan Kara1-6/+6
Use sector_t and loff_t for file offsets in UDF filesystem. Otherwise an overflow may occur for long files. Also make inode_bmap() return offset in the extent in number of blocks instead of number of bytes - for most callers this is more convenient. Signed-off-by: Jan Kara <jack@suse.cz> Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08udf: decrement correct link count in udf_rmdirStephen Mollett1-1/+1
It appears that a minor thinko occurred in udf_rmdir and the (already-cleared) link count on the directory that is being removed was being decremented instead of the link count on its parent directory. This gives rise to lots of kernel messages similar to: UDF-fs warning (device loop1): udf_rmdir: empty directory has nlink != 2 (8) when removing directory trees. No other ill effects have been observed but I guess it could theoretically result in the link count overflowing on a very long-lived, much modified directory. Signed-off-by: Stephen Mollett <molletts@yahoo.com> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: Jan Kara <jack@ucw.cz> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] mark struct inode_operations const 3Arjan van de Ven1-1/+1
Many struct inode_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2006-10-01[PATCH] r/o bind mounts: monitor zeroing of i_nlinkDave Hansen1-1/+1
Some filesystems, instead of simply decrementing i_nlink, simply zero it during an unlink operation. We need to catch these in addition to the decrement operations. Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-01[PATCH] r/o bind mount prepwork: inc_nlink() helperDave Hansen1-3/+3
This is mostly included for parity with dec_nlink(), where we will have some more hooks. This one should stay pretty darn straightforward for now. Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-01[PATCH] r/o bind mounts: unlink: monitor i_nlinkDave Hansen1-12/+6
When a filesystem decrements i_nlink to zero, it means that a write must be performed in order to drop the inode from the filesystem. We're shortly going to have keep filesystems from being remounted r/o between the time that this i_nlink decrement and that write occurs. So, add a little helper function to do the decrements. We'll tie into it in a bit to note when i_nlink hits zero. Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-03[PATCH] UDF: Fix issues reported by Coverity in namei.cJayachandran C1-2/+2
This patch fixes an issue in fs/udf/namei.c reported by Coverity: Error reported(1776) CID: 1776 Checker: UNUSED_VALUE (help) File: fs/udf/namei.c Function: udf_lookup Description: Pointer returned from "udf_find_entry" is never used Patch description: remove unused variable fi. Signed-off-by: Jayachandran C. <c.jayachandran@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-03remove pointers to the defunct UDF mailing listAdrian Bunk1-5/+0
This patch removes pointers to the defunct UDF mailing list. Signed-off-by: Adrian Bunk <bunk@stusta.de>
2005-06-30[PATCH] udf_find_entry() cleanupChristoph Hellwig1-4/+0
udf_find_entry can never be called with a NULL argument, so we shouldn't check for it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-28[PATCH] coverity: fs/udf/namei.c null checkKAMBAROV, ZAUR1-1/+3
"dir" was dereferenced before null check Signed-off-by: Zaur Kambarov <zkambarov@coverity.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds1-0/+1334
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!
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