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2017-03-29befs: make export work with cold dcacheFabian Frederick1-0/+15
based on commit b3b42c0deaa1 ("fs/affs: make export work with cold dcache") This adds get_parent function so that nfs client can still work after cache drop (Tested on NFS v4 with echo 3 > /proc/sys/vm/drop_caches) Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2017-03-02sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>Ingo Molnar1-0/+1
Add #include <linux/cred.h> dependencies to all .c files rely on sched.h doing that for them. Note that even if the count where we need to add extra headers seems high, it's still a net win, because <linux/sched.h> is included in over 2,200 files ... Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-12-22befs: add NFS export supportLuis de Bethencourt1-0/+38
Implement mandatory export_operations, so it is possible to export befs via nfs. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-12-22befs: remove trailing whitespacesLuis de Bethencourt7-48/+47
Removing all trailing whitespaces in befs. I was skeptic about tainting the history with this, but whitespace changes can be ignored by using 'git blame -w' and 'git log -w'. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-12-22befs: remove signatures from commentsLuis de Bethencourt3-7/+1
No idea why some comments have signatures. These predate git. Removing them since they add noise and no information. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-12-22befs: fix style issues in header filesLuis de Bethencourt6-17/+12
Fixing checkpatch.pl issues in befs header files: WARNING: Missing a blank line after declarations + befs_inode_addr iaddr; + iaddr.allocation_group = blockno >> BEFS_SB(sb)->ag_shift; WARNING: space prohibited between function name and open parenthesis '(' + return BEFS_SB(sb)->block_size / sizeof (befs_disk_inode_addr); ERROR: "foo * bar" should be "foo *bar" + const char *key, befs_off_t * value); ERROR: Macros with complex values should be enclosed in parentheses +#define PACKED __attribute__ ((__packed__)) Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-12-22befs: fix style issues in linuxvfs.cLuis de Bethencourt1-23/+26
Fix the following type of checkpatch.pl issues: WARNING: line over 80 characters +static struct dentry *befs_lookup(struct inode *, struct dentry *, unsigned int); ERROR: code indent should use tabs where possible + if (!bi)$ WARNING: please, no spaces at the start of a line + if (!bi)$ WARNING: labels should not be indented + unacquire_bh: WARNING: space prohibited between function name and open parenthesis '(' + sizeof (struct befs_inode_info), WARNING: braces {} are not necessary for single statement blocks + if (!*out) { + return -ENOMEM; + } WARNING: Block comments use a trailing */ on a separate line + * in special cases */ WARNING: Missing a blank line after declarations + int token; + if (!*p) ERROR: do not use assignment in if condition + if (!(bh = sb_bread(sb, sb_block))) { ERROR: space prohibited after that open parenthesis '(' + if( befs_sb->num_blocks > ~((sector_t)0) ) { ERROR: space prohibited before that close parenthesis ')' + if( befs_sb->num_blocks > ~((sector_t)0) ) { ERROR: space required before the open parenthesis '(' + if( befs_sb->num_blocks > ~((sector_t)0) ) { Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-12-22befs: fix typos in linuxvfs.cLuis de Bethencourt1-8/+6
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-12-22befs: fix style issues in io.cLuis de Bethencourt1-2/+2
Fixing the two following checkpatch.pl issues: ERROR: trailing whitespace + * Based on portions of file.c and inode.c $ WARNING: labels should not be indented + error: Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-12-22befs: fix style issues in inode.cLuis de Bethencourt1-6/+6
Fixing the following checkpatch.pl errors and warning: ERROR: trailing whitespace + * $ WARNING: Block comments use * on subsequent lines +/* + Validates the correctness of the befs inode ERROR: "foo * bar" should be "foo *bar" +befs_check_inode(struct super_block *sb, befs_inode * raw_inode, Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-12-22befs: fix style issues in debug.cLuis de Bethencourt1-6/+8
Fix all checkpatch.pl errors and warnings in debug.c: ERROR: trailing whitespace + * $ WARNING: Missing a blank line after declarations + va_list args; + va_start(args, fmt); ERROR: "foo * bar" should be "foo *bar" +befs_dump_inode(const struct super_block *sb, befs_inode * inode) ERROR: "foo * bar" should be "foo *bar" +befs_dump_super_block(const struct super_block *sb, befs_super_block * sup) ERROR: "foo * bar" should be "foo *bar" +befs_dump_small_data(const struct super_block *sb, befs_small_data * sd) WARNING: line over 80 characters +befs_dump_index_entry(const struct super_block *sb, befs_disk_btree_super * super) ERROR: "foo * bar" should be "foo *bar" +befs_dump_index_entry(const struct super_block *sb, befs_disk_btree_super * super) ERROR: "foo * bar" should be "foo *bar" +befs_dump_index_node(const struct super_block *sb, befs_btree_nodehead * node) Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-15Merge tag 'befs-v4.9-rc1' of git://github.com/luisbg/linux-befsLinus Torvalds8-283/+244
Pull befs fixes from Luis de Bethencourt: "I recently took maintainership of the befs file system [0]. This is the first time I send you a git pull request, so please let me know if all the below is OK. Salah Triki and myself have been cleaning the code and fixing a few small bugs. Sorry I couldn't send this sooner in the merge window, I was waiting to have my GPG key signed by kernel members at ELCE in Berlin a few days ago." [0] https://lkml.org/lkml/2016/7/27/502 * tag 'befs-v4.9-rc1' of git://github.com/luisbg/linux-befs: (39 commits) befs: befs: fix style issues in datastream.c befs: improve documentation in datastream.c befs: fix typos in datastream.c befs: fix typos in btree.c befs: fix style issues in super.c befs: fix comment style befs: add check for ag_shift in superblock befs: dump inode_size superblock information befs: remove unnecessary initialization befs: fix typo in befs_sb_info befs: add flags field to validate superblock state befs: fix typo in befs_find_key befs: remove unused BEFS_BT_PARMATCH fs: befs: remove ret variable fs: befs: remove in vain variable assignment fs: befs: remove unnecessary *befs_sb variable fs: befs: remove useless initialization to zero fs: befs: remove in vain variable assignment fs: befs: Insert NULL inode to dentry fs: befs: Remove useless calls to brelse in befs_find_brun_dblindirect ...
2016-10-08befs: befs: fix style issues in datastream.cLuis de Bethencourt1-15/+17
Fixing the following checkpatch.pl errors: ERROR: "foo * bar" should be "foo *bar" + befs_blocknr_t blockno, befs_block_run * run); WARNING: Missing a blank line after declarations + struct buffer_head *bh; + befs_debug(sb, "---> %s length: %llu", __func__, len); WARNING: Block comments use * on subsequent lines + /* + Double indir block, plus all the indirect blocks it maps. (and other instances of these) Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: improve documentation in datastream.cLuis de Bethencourt1-95/+98
Convert function descriptions to kernel-doc style. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: fix typos in datastream.cLuis de Bethencourt1-4/+4
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: fix typos in btree.cLuis de Bethencourt1-4/+3
Fixing typos in kernel-doc function descriptions in fs/befs/btree.c. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: fix style issues in super.cLuis de Bethencourt1-7/+8
Fixing the following checkpatch.pl error: ERROR: "foo * bar" should be "foo *bar" +befs_load_sb(struct super_block *sb, befs_super_block * disk_sb) And the following warnings: WARNING: suspect code indent for conditional statements (8, 12) + if (disk_sb->fs_byte_order == BEFS_BYTEORDER_NATIVE_LE) + befs_sb->byte_order = BEFS_BYTESEX_LE; WARNING: suspect code indent for conditional statements (8, 12) + else if (disk_sb->fs_byte_order == BEFS_BYTEORDER_NATIVE_BE) + befs_sb->byte_order = BEFS_BYTESEX_BE; WARNING: break quoted strings at a space character + befs_error(sb, "blocksize(%u) cannot be larger" + "than system pagesize(%lu)", befs_sb->block_size, WARNING: line over 80 characters + if (befs_sb->log_start != befs_sb->log_end || befs_sb->flags == BEFS_DIRTY) { Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: fix comment styleLuis de Bethencourt1-7/+3
The description of befs_load_sb was confusing the kernel-doc system since, because it starts with /**, it thinks it will document the function with kernel-doc formatting. Which it isn't. Fix other comment style issues in the file while we are at it. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: add check for ag_shift in superblockLuis de Bethencourt1-0/+7
ag_shift and blocks_per_ag contain the same information in different ways, same as block_shift and block_size do. It is worth checking this two are consistent, but since blocks_per_ag isn't documented as mandatory to use some implementations of befs don't enforce this, so making it non-fatal if they don't match and just having it as a warning. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: dump inode_size superblock informationLuis de Bethencourt1-0/+1
befs_dump_super_block() wasn't giving the inode_size information when dumping all elements of the superblock. Add this element to have complete information of the superblock. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: remove unnecessary initializationSalah Triki1-1/+1
There is no need to init block, since it will be overwitten later by iaddr2blockno(). Signed-off-by: Salah Triki <salah.triki@gmail.com> Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08befs: fix typo in befs_sb_infoSalah Triki1-1/+1
Fixing jornal to Journal. Signed-off-by: Salah Triki <salah.triki@gmail.com> Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08befs: add flags field to validate superblock stateSalah Triki2-1/+6
For validating superblock state, add flags field to befs_sb_info, read the state from the disk and check if it is equal to BEFS_DIRTY. Signed-off-by: Salah Triki <salah.triki@gmail.com> Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08befs: fix typo in befs_find_keyLuis de Bethencourt1-1/+1
Fixing skeep to skip. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: remove unused BEFS_BT_PARMATCHLuis de Bethencourt2-19/+16
befs_btree_find(), the only caller of befs_find_key(), only cares about if the return from that function is BEFS_BT_MATCH or not. It never uses the partial match given with BEFS_BT_PARMATCH. Make the overflow return clearer by having BEFS_BT_OVERFLOW instead of BEFS_BT_PARMATCH. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08fs: befs: remove ret variableSalah Triki1-2/+1
ret is initialized to -EIO and is never modified, so remove ret and use -EIO directly. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: remove in vain variable assignmentSalah Triki1-1/+1
There is no need to init res, since it will be overwitten later by befs_fblock2brun(). Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: remove unnecessary *befs_sb variableSalah Triki1-2/+1
Remove *befs_sb and just call BEFS_SB(sb) directly, since the returned value by this function is only used once. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: remove useless initialization to zeroSalah Triki1-1/+1
node_off is unconditionally set to bt_super.root_node_ptr, so no need to init it to zero. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: remove in vain variable assignmentSalah Triki1-2/+0
There is no need to set *value, it will be overwritten later. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: Insert NULL inode to dentrySalah Triki1-0/+1
As VFS expects, lookup inserts NULL inode to dentry when the named inode does not exist. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: Remove useless calls to brelse in befs_find_brun_dblindirectSalah Triki1-2/+0
The calls to brelse are useless since dbl_indir_block and indir_block are NULL. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: Coding style fixSalah Triki1-3/+3
Constant has to be capitalized. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: Remove redundant validation from befs_find_brun_directSalah Triki1-8/+0
The only caller of befs_find_brun_direct is befs_fblock2brun, which already validates that the block is within the range of direct blocks. So remove the duplicate validation. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08befs: fix typo in befs_bt_read_node documentationLuis de Bethencourt1-2/+2
Fixing a grammatical error in the documentation. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08befs: in memory free_node_ptr and max_size never readLuis de Bethencourt1-2/+0
The only place the values of free_node_ptr and max_size are read is in befs_dump_index_entry(), which both times it is called, it is passed the on disk superblock. Removing assignment of unused values. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08befs: make consistent use of befs_error()Luis de Bethencourt3-4/+9
befs_error() is used in potential errors that could happen in befs to provide informational log messages. befs_debug() is silent when CONFIG_BEFS_DEBUG=no, and very verbose when switched on, which is why it is used for general debugging but not for errors. Fix a few cases where the befs debug utility usage isn't following the expected pattern. To make sure we have consistent information in the logs. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08befs: use simpler while loopLuis de Bethencourt1-36/+38
Replace goto with simpler while loop to make befs_readdir() more readable. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08befs: remove constant variableLuis de Bethencourt1-5/+2
Use macro directly instead of via assigning it to an unchanging variable. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Acked-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: avoid dereferencing dentry twiceLuis de Bethencourt1-1/+1
No need to dereference dentry twice to get the name when we already have it stored in a local variable. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: remove comment that confuses kernel-docLuis de Bethencourt1-4/+0
This comment with a mysterious unfinished line confuses the kernel-doc system since, because it starts with /**, it thinks it is documenting a function. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: check silent flag before logging errorLuis de Bethencourt1-1/+2
Log error only when silent flag is not set. Fixes: dbe6460388bc ("fs/befs/linuxvfs.c: check silent flag before logging errors") Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Acked-by: Salah Triki <salah.triki@gmail.com>
2016-10-08fs: befs: replace befs_bread by sb_breadSalah Triki4-30/+4
Since befs_bread merely calls sb_bread, replace it by sb_bread. Link: http://lkml.kernel.org/r/1466800258-4542-1-git-send-email-salah.triki@gmail.com Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2016-10-08befs: remove unused functionsLuis de Bethencourt1-12/+0
befs_iaddr_is_empty() and befs_brun_size() are unused. Remove them. Link: http://lkml.kernel.org/r/1465700235-22881-3-git-send-email-luisbg@osg.samsung.com Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2016-10-08befs: fix function name in documentationLuis de Bethencourt1-1/+1
Documentation of function befs_load_cb() lists it as load_befs_sb(). Fix the misnomer. Link: http://lkml.kernel.org/r/1465700235-22881-2-git-send-email-luisbg@osg.samsung.com Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2016-10-08befs: check return of sb_min_blocksizeLuis de Bethencourt1-1/+6
Confirm sb_min_blocksize() succeeded before continuing. Link: http://lkml.kernel.org/r/1465700235-22881-1-git-send-email-luisbg@osg.samsung.com Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2016-10-08fs: befs: remove useless pr_err in befs_init_inodecache()Salah Triki1-4/+2
Remove pr_err since kmem_cache_create log error and dump stack. Link: http://lkml.kernel.org/r/e6d03cbc9542495dc6174b59e32fcd41c1393cfc.1464226521.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org>
2016-10-08fs/befs/linuxvfs.c: remove useless befs_errorSalah Triki1-2/+0
Remove befs_error since when kmalloc fails there is a generic out of memory and stack dump. Link: http://lkml.kernel.org/r/3de4d388d98bbb570462a5eb8e64623e17fb5d74.1464226521.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2016-10-08fs/befs/linuxvfs.c: remove useless pr_err in befs_fill_super()Salah Triki1-4/+2
Remove pr_err since when kzalloc fails there is a generic out of memory and stack dump. Link: http://lkml.kernel.org/r/c5a7f2d42ec0fc8465c118248e88cd221c483391.1464226521.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2016-10-08fs/befs/linuxvfs.c: check silent flag before logging errorsSalah Triki1-6/+9
Log errors only when silent flag is not set. Link: http://lkml.kernel.org/r/d400aaf5a7430de79bd956e40ec075fb1cb08474.1464226521.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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