linux-toradex.git/fs/ufs/balloc.c, branch v3.14

ufs: drop lock/unlock super

2012-10-10T03:33:39+00:00

Removed lock/unlock super. Added a new private s_lock mutex.

Signed-off-by: Marco Stornelli 
Signed-off-by: Al Viro

fs/ufs: get rid of write_super

2012-07-22T19:58:16+00:00

This patch makes UFS stop using the VFS '->write_super()' method along with
the 's_dirt' superblock flag, because they are on their way out.

The way we implement this is that we schedule a delay job instead relying on
's_dirt' and '->write_super()'.

The whole "superblock write-out" VFS infrastructure is served by the
'sync_supers()' kernel thread, which wakes up every 5 (by default) seconds and
writes out all dirty superblocks using the '->write_super()' call-back.  But the
problem with this thread is that it wastes power by waking up the system every
5 seconds, even if there are no diry superblocks, or there are no client
file-systems which would need this (e.g., btrfs does not use
'->write_super()'). So we want to kill it completely and thus, we need to make
file-systems to stop using the '->write_super()' VFS service, and then remove
it together with the kernel thread.

Tested using fsstress from the LTP project.

Signed-off-by: Artem Bityutskiy 
Signed-off-by: Al Viro

ufs: fix truncated values handling 64 bit metadata

2011-05-27T00:12:33+00:00

Originally i_lastfrag was 32 bits but then we added support for handling
64 bit metadata and it became a 64 bit variable.  That was during 2007, in
54fb996ac15c "[PATCH] ufs2 write: block allocation update".  Unfortunately
these casts got left behind so the value got truncated to 32 bit again.

[akpm@linux-foundation.org: remove now-unneeded min_t/max_t casting]
Signed-off-by: Dan Carpenter 
Cc: Evgeniy Dushistov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

remove SWRITE* I/O types

2010-08-18T05:09:01+00:00

These flags aren't real I/O types, but tell ll_rw_block to always
lock the buffer instead of giving up on a failed trylock.

Instead add a new write_dirty_buffer helper that implements this semantic
and use it from the existing SWRITE* callers.  Note that the ll_rw_block
code had a bug where it didn't promote WRITE_SYNC_PLUG properly, which
this patch fixes.

In the ufs code clean up the helper that used to call ll_rw_block
to mirror sync_dirty_buffer, which is the function it implements for
compound buffers.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Al Viro

ufs: Remove dead quota code

2010-05-24T12:10:19+00:00

UFS quota is non-functional at least since 2.6.12 because dq_op was set
to NULL. Since the filesystem exists mainly to allow cooperation with Solaris
and quota format isn't standard, just remove the dead code.

CC: Evgeniy Dushistov 
Signed-off-by: Jan Kara

dquot: cleanup space allocation / freeing routines

2010-03-04T23:20:28+00:00

Get rid of the alloc_space, free_space, reserve_space, claim_space and
release_rsv dquot operations - they are always called from the filesystem
and if a filesystem really needs their own (which none currently does)
it can just call into it's own routine directly.

Move shared logic into the common __dquot_alloc_space,
dquot_claim_space_nodirty and __dquot_free_space low-level methods,
and rationalize the wrappers around it to move as much as possible
code into the common block for CONFIG_QUOTA vs not.  Also rename
all these helpers to be named dquot_* instead of vfs_dq_*.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Jan Kara

ufs: Use lowercase names of quota functions

2009-03-26T01:18:36+00:00

Use lowercase names of quota functions instead of old uppercase ones.

Signed-off-by: Jan Kara 
CC: Evgeniy Dushistov

ufs: replace remaining FUNCTION occurrences

2008-04-28T15:58:45+00:00

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison 
Cc: Jan Engelhardt 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fs/ufs/balloc.c: fix sparc64 printk warning

2008-03-20T01:53:37+00:00

fs/ufs/balloc.c: In function `ufs_change_blocknr':
fs/ufs/balloc.c:317: warning: long long unsigned int format, long unsigned int arg (arg 2)
fs/ufs/balloc.c:317: warning: long long unsigned int format, long unsigned int arg (arg 3)

sector_t is u64 and we don't know what type the architecture uses to implement
u64.

Cc: Evgeniy Dushistov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drop linux/ufs_fs.h from userspace export and relocate it to fs/ufs/ufs_fs.h

2008-02-08T17:22:39+00:00

Per previous discussions about cleaning up ufs_fs.h, people just want
this straight up dropped from userspace export.  The only remaining
consumer (silo) has been fixed a while ago to not rely on this header.
This allows use to move it completely from include/linux/ to fs/ufs/
seeing as how the only in-kernel consumer is fs/ufs/.

Signed-off-by: Mike Frysinger 
Cc: Jan Kara 
Cc: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds