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authorEric W. Biederman <ebiederm@xmission.com>2006-06-26 00:25:48 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-26 09:58:24 -0700
commit48e6484d49020dba3578ad117b461e8a391e8f0f (patch)
tree7824ca84bfe71c3fe2c09a1fedc31106fec4f500 /fs/read_write.c
parent662795deb854b31501e0ffb42b7f0cce802c134a (diff)
[PATCH] proc: Rewrite the proc dentry flush on exit optimization
To keep the dcache from filling up with dead /proc entries we flush them on process exit. However over the years that code has gotten hairy with a dentry_pointer and a lock in task_struct and misdocumented as a correctness feature. I have rewritten this code to look and see if we have a corresponding entry in the dcache and if so flush it on process exit. This removes the extra fields in the task_struct and allows me to trivially handle the case of a /proc/<tgid>/task/<pid> entry as well as the current /proc/<pid> entries. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/read_write.c')
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