linux.git/fs/sysfs/inode.c, branch v2.6.18

[PATCH] lockdep: annotate the sysfs i_mutex to be a separate class

2006-07-12T19:52:54+00:00

sysfs has a different i_mutex lock order behavior for i_mutex than the
other filesystems; sysfs i_mutex is called in many places with subsystem
locks held.  At the same time, many of the VFS locking rules do not apply
to sysfs at all (cross directory rename for example).  To untangle this
mess (which gives false positives in lockdep), we're giving sysfs inodes
their own class for i_mutex.

Signed-off-by: Arjan van de Ven 
Cc: Ingo Molnar 
Cc: Greg KH 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] mark address_space_operations const

2006-06-28T21:59:04+00:00

Same as with already do with the file operations: keep them in .rodata and
prevents people from doing runtime patching.

Signed-off-by: Christoph Hellwig 
Cc: Steven French 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

BUG_ON() Conversion in fs/sysfs/

2006-03-31T23:18:38+00:00

this changes if() BUG(); constructs to BUG_ON() which is
cleaner, contains unlikely() and can better optimized away.

Signed-off-by: Eric Sesterhenn 
Signed-off-by: Adrian Bunk

[PATCH] sysfs: kzalloc conversion

2006-03-20T21:42:58+00:00

this converts fs/sysfs to kzalloc() usage.
compile tested with make allyesconfig

Signed-off-by: Eric Sesterhenn 
Signed-off-by: Greg Kroah-Hartman

[PATCH] sysfs: sysfs_remove_dir() needs to invalidate the dentry

2006-03-20T21:42:57+00:00

When calling sysfs_remove_dir() don't allow any further sysfs functions
to work for this kobject anymore.  This fixes a nasty USB cdc-acm oops
on disconnect.

Many thanks to Bob Copeland and Paul Fulghum for taking the time to
track this down.

Cc: Bob Copeland 
Cc: Paul Fulghum 
Cc: Maneesh Soni 
Signed-off-by: Greg Kroah-Hartman

[PATCH] capable/capability.h (fs/)

2006-01-12T02:42:13+00:00

fs: Use  where capable() is used.

Signed-off-by: Randy Dunlap 
Acked-by: Tim Schmielau 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem

2006-01-09T23:59:24+00:00

This patch converts the inode semaphore to a mutex. I have tested it on
XFS and compiled as much as one can consider on an ia64. Anyway your
luck with it might be different.

Modified-by: Ingo Molnar 

(finished the conversion)

Signed-off-by: Jes Sorensen 
Signed-off-by: Ingo Molnar

[PATCH] Fix oops in sysfs_hash_and_remove_file()

2005-08-27T02:37:13+00:00

The problem arises if an entity in sysfs is created and removed without
ever having been made completely visible.  In SCSI this is triggered by
removing a device while it's initialising.

The problem appears to be that because it was never made visible in sysfs,
the sysfs dentry has a null d_inode which oopses when a reference is made
to it.  The solution is simply to check d_inode and assume the object was
never made visible (and thus doesn't need deleting) if it's NULL.

(akpm: possibly a stopgap for 2.6.13 scsi problems.  May not be the
long-term fix)

Signed-off-by: James Bottomley 
Cc: Greg KH 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] sysfs: fix sysfs_setattr

2005-07-29T20:12:49+00:00

o sysfs_dirent's s_mode field should also be updated in sysfs_setattr(), else
  there could be inconsistency in the two fields. s_mode is used while
  ->readdir so as not to bring in the inode to cache.

Signed-off-by: Maneesh Soni 
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: Linus Torvalds

[PATCH] remove duplicate get_dentry functions in various places

2005-06-23T16:45:20+00:00

Various filesystem drivers have grown a get_dentry() function that's a
duplicate of lookup_one_len, except that it doesn't take a maximum length
argument and doesn't check for \0 or / in the passed in filename.

Switch all these places to use lookup_one_len.

Signed-off-by: Christoph Hellwig 
Cc: Greg KH 
Cc: Paul Jackson 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds