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2006-12-07[PATCH] Allow NULL pointers in percpu_freeAlan Stern1-2/+1
The patch (as824b) makes percpu_free() ignore NULL arguments, as one would expect for a deallocation routine. (Note that free_percpu is #defined as percpu_free in include/linux/percpu.h.) A few callers are updated to remove now-unneeded tests for NULL. A few other callers already seem to assume that passing a NULL pointer to percpu_free() is okay! The patch also removes an unnecessary NULL check in percpu_depopulate(). Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-04[PATCH] blktrace: don't return blktrace_seq from trace_note()Jens Axboe1-7/+4
Only the process notifier needs it, and it can set it manually. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-04[PATCH] blktrace: uninline trace_note()Jens Axboe1-15/+15
It's too large to inline. Additionally clean it up, by fast pathing the likely path. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-01[PATCH] blktrace: add timestamp messageOlaf Kirch1-12/+45
This adds a new timestamp message to blktrace, giving the timeofday when we starting tracing. This helps user space correlate block trace events with eg an application strace. This requires a (compatible) update to blkparse. The changed blkparse is still able to process traces generated by older kernels, and older versions of blkparse should silently ignore the new records (because they have a pid of 0). Signed-off-by: Olaf Kirch <okir@suse.de> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-09-30[PATCH] Update axboe@suse.de email addressJens Axboe1-1/+1
As people often look for the copyright in files to see who to mail, update the link to a neutral one. Signed-off-by: Jens Axboe <axboe@kernel.dk>
2006-09-30[PATCH] blktrace: cleanup using on_each_cpuMartin Peschke1-15/+4
This patch kills a few lines of code in blktrace by making use of on_each_cpu(). Signed-off-by: Martin Peschke <mp3@de.ibm.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2006-09-30[PATCH] blktrace: support for logging metadata readsJens Axboe1-1/+4
Signed-off-by: Jens Axboe <axboe@suse.de>
2006-09-29[PATCH] ifdef blktrace debugging fieldsAlexey Dobriyan1-2/+4
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Jens Axboe <axboe@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-27[PATCH] inode_diet: Replace inode.u.generic_ip with inode.i_privateTheodore Ts'o1-1/+1
The following patches reduce the size of the VFS inode structure by 28 bytes on a UP x86. (It would be more on an x86_64 system). This is a 10% reduction in the inode size on a UP kernel that is configured in a production mode (i.e., with no spinlock or other debugging functions enabled; if you want to save memory taken up by in-core inodes, the first thing you should do is disable the debugging options; they are responsible for a huge amount of bloat in the VFS inode structure). This patch: The filesystem or device-specific pointer in the inode is inside a union, which is pretty pointless given that all 30+ users of this field have been using the void pointer. Get rid of the union and rename it to i_private, with a comment to explain who is allowed to use the void pointer. This is just a cleanup, but it allows us to reuse the union 'u' for something something where the union will actually be used. [judith@osdl.org: powerpc build fix] Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Judith Lebzelter <judith@osdl.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-25[PATCH] blktrace: fix read-ahead bitMilton Miller1-1/+1
It should be toggling the same bit on and off, fix it up. Signed-off-by: Jens Axboe <axboe@suse.de>
2006-07-06[PATCH] blktrace: readahead supportNathan Scott1-1/+4
Provide the needed kernel support for distinguishing readahead from regular read requests when tracing block devices. Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Jens Axboe <axboe@suse.de>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel1-1/+0
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-03-23[PATCH] Block queue IO tracing support (blktrace) as of 2006-03-23Jens Axboe1-0/+538
Signed-off-by: Jens Axboe <axboe@suse.de>
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