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- 26 Sep, 2006 1 commit
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Juha Yrjl authored
When no events have been reported by sysfs_notify(), sd->s_events was previously set to zero. The initial value for new readers is also zero, so poll was blocking, regardless of whether the attribute was read by the process or not. Make poll behave consistently by setting the initial value of sd->s_events to non-zero. Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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- 26 Jun, 2006 1 commit
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Akinobu Mita authored
This patch converts the combination of list_del(A) and list_add(A, B) to list_move(A, B). Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Akinobu Mita <mita@miraclelinux.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- 14 Apr, 2006 1 commit
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NeilBrown authored
It works like this: Open the file Read all the contents. Call poll requesting POLLERR or POLLPRI (so select/exceptfds works) When poll returns, close the file and go to top of loop. or lseek to start of file and go back to the 'read'. Events are signaled by an object manager calling sysfs_notify(kobj, dir, attr); If the dir is non-NULL, it is used to find a subdirectory which contains the attribute (presumably created by sysfs_create_group). This has a cost of one int per attribute, one wait_queuehead per kobject, one int per open file. The name "sysfs_notify" may be confused with the inotify functionality. Maybe it would be nice to support inotify for sysfs attributes as well? This patch also uses sysfs_notify to allow /sys/block/md*/md/sync_action to be pollable Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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- 02 Apr, 2006 1 commit
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Martin Waitz authored
This patch updates the comments to match the actual code. Signed-off-by: Martin Waitz <tali@admingilde.org> Signed-off-by: Adrian Bunk <bunk@stusta.de>
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- 28 Mar, 2006 1 commit
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Arjan van de Ven authored
This is a conversion to make the various file_operations structs in fs/ const. Basically a regexp job, with a few manual fixups The goal is both to increase correctness (harder to accidentally write to shared datastructures) and reducing the false sharing of cachelines with things that get dirty in .data (while .rodata is nicely read only and thus cache clean) Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- 20 Mar, 2006 3 commits
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Greg Kroah-Hartman authored
These functions should only be used by the kobject core, and if any driver tries to use them, bad things happen. Unexport them to try to prevent this from happening. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Maneesh Soni authored
The following patch checks for existing sysfs_dirent before preparing new one while creating sysfs directories and files. Signed-off-by: Maneesh Soni <maneesh@in.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Greg Kroah-Hartman authored
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 <email@bobcopeland.com> Cc: Paul Fulghum <paulkf@microgate.com> Cc: Maneesh Soni <maneesh@in.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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- 09 Jan, 2006 1 commit
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Jes Sorensen authored
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 <mingo@elte.hu> (finished the conversion) Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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- 05 Jan, 2006 1 commit
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Steven Rostedt authored
I noticed that if sysfs_make_dirent fails to allocate the sd, then a null will be passed to sysfs_put. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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- 23 Jun, 2005 1 commit
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Christoph Hellwig authored
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 <hch@lst.de> Cc: Greg KH <greg@kroah.com> Cc: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- 20 Jun, 2005 2 commits
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Maneesh Soni authored
o This adds ->i_op->setattr VFS method for sysfs inodes. The changed attribues are saved in the persistent sysfs_dirent structure as a pointer to struct iattr. The struct iattr is allocated only for those sysfs_dirent's for which default attributes are getting changed. Thanks to Jon Smirl for this suggestion. Signed-off-by: Maneesh Soni <maneesh@in.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Maneesh Soni authored
o The following patch makes sure to attach sysfs_dirent to the dentry before allocation a new inode through sysfs_create(). This change is done as preparatory work for implementing ->i_op->setattr() functionality for sysfs objects. Signed-off-by: Maneesh Soni <maneesh@in.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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- 16 Apr, 2005 1 commit
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Linus Torvalds authored
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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