04 Jan, 2012
1 commit
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Signed-off-by: Al Viro
01 Nov, 2011
1 commit
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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
Cc: "Kirill A. Shutemov"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
21 Jul, 2011
1 commit
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Btrfs needs to be able to control how filemap_write_and_wait_range() is called
in fsync to make it less of a painful operation, so push down taking i_mutex and
the calling of filemap_write_and_wait() down into the ->fsync() handlers. Some
file systems can drop taking the i_mutex altogether it seems, like ext3 and
ocfs2. For correctness sake I just pushed everything down in all cases to make
sure that we keep the current behavior the same for everybody, and then each
individual fs maintainer can make up their mind about what to do from there.
Thanks,Acked-by: Jan Kara
Signed-off-by: Josef Bacik
Signed-off-by: Al Viro
20 Jul, 2011
1 commit
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not used by the instances anymore.
Signed-off-by: Al Viro
27 May, 2011
1 commit
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Tell the filesystem if we just updated timestamp (I_DIRTY_SYNC) or
anything else, so that the filesystem can track internally if it
needs to push out a transaction for fdatasync or not.This is just the prototype change with no user for it yet. I plan
to push large XFS changes for the next merge window, and getting
this trivial infrastructure in this window would help a lot to avoid
tree interdependencies.Also remove incorrect comments that ->dirty_inode can't block. That
has been changed a long time ago, and many implementations rely on it.Signed-off-by: Christoph Hellwig
Signed-off-by: Al Viro
10 May, 2011
2 commits
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In the current nilfs, page cache for btree nodes and meta data files
do not set a valid back pointer to the host inode in mapping->host.This will change it so that every address space in nilfs uses
mapping->host to hold its host inode.Signed-off-by: Ryusuke Konishi
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This adds resize ioctl which makes online resize possible.
Signed-off-by: Ryusuke Konishi
30 Mar, 2011
1 commit
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Fixes whitespace coding style issues.
Signed-off-by: Nicolas Kaiser
Signed-off-by: Ryusuke Konishi
09 Mar, 2011
2 commits
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This directly uses sb->s_fs_info to keep a nilfs filesystem object and
fully removes the intermediate nilfs_sb_info structure. With this
change, the hierarchy of on-memory structures of nilfs will be
simplified as follows:Before:
super_block
-> nilfs_sb_info
-> the_nilfs
-> cptree --+-> nilfs_root (current file system)
+-> nilfs_root (snapshot A)
+-> nilfs_root (snapshot B)
:
-> nilfs_sc_info (log writer structure)
After:
super_block
-> the_nilfs
-> cptree --+-> nilfs_root (current file system)
+-> nilfs_root (snapshot A)
+-> nilfs_root (snapshot B)
:
-> nilfs_sc_info (log writer structure)The reason why we didn't design so from the beginning is because the
initial shape also differed from the above. The early hierachy was
composed of "per-mount-point" super_block -> nilfs_sb_info pairs and a
shared nilfs object. On the kernel 2.6.37, it was changed to the
current shape in order to unify super block instances into one per
device, and this cleanup became applicable as the result.Signed-off-by: Ryusuke Konishi
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This replaces sbi uses with direct reference to sb instance.
Signed-off-by: Ryusuke Konishi
08 Mar, 2011
3 commits
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This records the number of used blocks per checkpoint in each
checkpoint entry of cpfile. Even though userland tools can get the
block count via nilfs_get_cpinfo ioctl, it was not updated by the
nilfs2 kernel code. This fixes the issue and makes it available for
userland tools to calculate used amount per checkpoint.Signed-off-by: Ryusuke Konishi
Cc: Jiro SEKIBA -
The current FS_IOC_GETFLAGS/SETFLAGS/GETVERSION will fail if
application is 32 bit and kernel is 64 bit.This issue is avoidable by adding compat_ioctl method.
Signed-off-by: Ryusuke Konishi
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Nilfs has few rectrictions on which flags may be set on which inodes
like ext2/3/4 filesystems used to be. Specifically DIRSYNC may only
be set on directories and IMMUTABLE and APPEND may not be set on
links. Tighten that to disallow TOPDIR being set on non-directories
and only NODUMP and NOATIME to be set on non-regular file,
non-directories.This introduces a flags masking function like those of extN and uses
it during inode creation.Signed-off-by: Ryusuke Konishi
10 Jan, 2011
3 commits
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nilfs_dat_inode function was a wrapper to switch between normal dat
inode and gcdat, a clone of the dat inode for garbage collection.This function got obsolete when the gcdat inode was removed, and now
we can access the dat inode directly from a nilfs object. So, we will
unfold the wrapper and remove it.Signed-off-by: Ryusuke Konishi
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This removes argument for passing nilfs_sb_info structure from
nilfs_set_file_dirty and nilfs_load_inode_block functions. We can get
a pointer to the structure from inodes.[Stephen Rothwell : fix conflict with commit
b74c79e99389cd79b31fcc08f82c24e492e63c7e]Signed-off-by: Ryusuke Konishi
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This adds fiemap to nilfs. Two new functions, nilfs_fiemap and
nilfs_find_uncommitted_extent are added.nilfs_fiemap() implements the fiemap inode operation, and
nilfs_find_uncommitted_extent() helps to get a range of data blocks
whose physical location has not been determined.nilfs_fiemap() collects extent information by looping through
nilfs_bmap_lookup_contig and nilfs_find_uncommitted_extent routines.Signed-off-by: Ryusuke Konishi
07 Jan, 2011
1 commit
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Signed-off-by: Nick Piggin
23 Oct, 2010
9 commits
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This finally removes own inode allocator and destructor functions for
metadata files. Several routines, nilfs_mdt_new(),
nilfs_mdt_new_common(), nilfs_mdt_clear(), nilfs_mdt_destroy(), and
nilfs_alloc_inode_common() will be gone.Signed-off-by: Ryusuke Konishi
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After applied the patch that unified sb instances, root dentry of
snapshots can be left in dcache even after their trees are unmounted.The orphan root dentry/inode keeps a root object, and this causes
false positive of nilfs_checkpoint_is_mounted function.This resolves the issue by having nilfs_checkpoint_is_mounted test
whether the root dentry is busy or not.Signed-off-by: Ryusuke Konishi
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This makes use of iget5_locked to allocate or get inode for metadata
files to stop using own inode allocator.Signed-off-by: Ryusuke Konishi
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This applies prepared rollback function and redirect function of
metadata file to DAT file, and eliminates GCDAT inode.Signed-off-by: Ryusuke Konishi
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Snapshots of nilfs are read-only.
After super block instances (sb) will be unified, nilfs will need to
check write access by a way other than implicit test with
IS_RDONLY(inode). This is because IS_RDONLY() refers to MS_RDONLY bit
of inode->i_sb->s_flags and it will become inaccurate after the
unification of sb.To prepare for the issue, this uses i_op->permission to deny write
access to inodes in snapshots.Signed-off-by: Ryusuke Konishi
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This rewrites functions using ifile so that they get ifile from
nilfs_root object, and will remove sbi->s_ifile. Some functions that
don't know the root object are extended to receive it from caller.Signed-off-by: Ryusuke Konishi
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The previous export operations cannot handle multiple versions of
a filesystem if they belong to the same sb instance.This adds a new type of file handle and extends export operations so
that they can get the inode specified by a checkpoint number as well
as an inode number and a generation number.Signed-off-by: Ryusuke Konishi
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This puts a pointer to nilfs_root object in the private part of
on-memory inode, and makes nilfs_iget function pick up the inode with
the same root object.Non-root inodes inherit its nilfs_root object from parent inode. That
of the root inode is allocated through nilfs_attach_checkpoint()
function.Signed-off-by: Ryusuke Konishi
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This uses inode hash function that vfs provides instead of the own
hash table for caching gc inodes. This finally removes the own inode
hash from nilfs.Signed-off-by: Ryusuke Konishi
11 Aug, 2010
1 commit
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (96 commits)
no need for list_for_each_entry_safe()/resetting with superblock list
Fix sget() race with failing mount
vfs: don't hold s_umount over close_bdev_exclusive() call
sysv: do not mark superblock dirty on remount
sysv: do not mark superblock dirty on mount
btrfs: remove junk sb_dirt change
BFS: clean up the superblock usage
AFFS: wait for sb synchronization when needed
AFFS: clean up dirty flag usage
cifs: truncate fallout
mbcache: fix shrinker function return value
mbcache: Remove unused features
add f_flags to struct statfs(64)
pass a struct path to vfs_statfs
update VFS documentation for method changes.
All filesystems that need invalidate_inode_buffers() are doing that explicitly
convert remaining ->clear_inode() to ->evict_inode()
Make ->drop_inode() just return whether inode needs to be dropped
fs/inode.c:clear_inode() is gone
fs/inode.c:evict() doesn't care about delete vs. non-delete paths now
...Fix up trivial conflicts in fs/nilfs2/super.c
10 Aug, 2010
1 commit
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[folded build fix from sfr]
Signed-off-by: Al Viro
23 Jul, 2010
6 commits
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This forces nilfs to check compatibility of feature flags so as to
reject a filesystem with unknown features when it mounts or remounts
the filesystem.Signed-off-by: Ryusuke Konishi
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This removes nilfs_bmap_union and finally unifies three structures and
the union in bmap/btree code into one.Signed-off-by: Ryusuke Konishi
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This will sync super blocks in turns instead of syncing duplicate
super blocks at the time. This will help searching valid super root
when super block is written into disk before log is written, which is
happen when barrier-less block devices are unmounted uncleanly. In
the situation, old super block likely points to valid log.This patch introduces ns_sbwcount member to the nilfs object and adds
nilfs_sb_will_flip() function; ns_sbwcount counts how many times super
blocks write back to the disk. And, nilfs_sb_will_flip() decides
whether flipping required or not based on the count of ns_sbwcount to
sync super blocks asymmetrically.The following functions are also changed:
- nilfs_prepare_super(): flips super blocks according to the
argument. The argument is calculated by nilfs_sb_will_flip()
function.- nilfs_cleanup_super(): sets "clean" flag to both super blocks if
they point to the same checkpoint.To update both of super block information, caller of
nilfs_commit_super must set the information on both super blocks.Signed-off-by: Jiro SEKIBA
Signed-off-by: Ryusuke Konishi -
This function checks validity of super block pointers.
If first super block is invalid, it will swap the super blocks.
The function should be called before any super block information updates.
Caller must obtain nilfs->ns_sem.Signed-off-by: Jiro SEKIBA
Signed-off-by: Ryusuke Konishi -
This moves out section that updates information of the recent log
position stored in super blocks from nilfs_commit_super to a new
routine named nilfs_set_log_cursor.Signed-off-by: Ryusuke Konishi
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This function write out filesystem state to super blocks in order to
share the same cleanup work. This is a preparation for making super
block writeback alternately.Cc: Jiro SEKIBA
Signed-off-by: Ryusuke Konishi
28 May, 2010
1 commit
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Signed-off-by: Christoph Hellwig
Signed-off-by: Al Viro
04 Mar, 2010
1 commit
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... especially when it only needs (and initializes) .d_name of it
Signed-off-by: Al Viro
02 Oct, 2009
1 commit
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[akpm@linux-foundation.org: fix KVM]
Signed-off-by: Alexey Dobriyan
Acked-by: Mike Frysinger
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
22 Sep, 2009
2 commits
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Signed-off-by: Alexey Dobriyan
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Alexey Dobriyan
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
24 Jun, 2009
1 commit
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Actually, get rid of private analog, since nothing in there is
using ACLs at all so far.Signed-off-by: Al Viro