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path: root/fs/proc/fd.c
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* proc: kill the extra proc_readfd_common()->dir_emit_dots()Oleg Nesterov2013-08-241-2/+0
| | | | | | | | proc_readfd_common() does dir_emit_dots() twice in a row, we need to do this only once. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* proc_fill_cache(): just make instantiate_t return intAl Viro2013-06-291-10/+8
| | | | | | all instances always return ERR_PTR(-E...) or NULL, anyway Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* [readdir] convert procfsAl Viro2013-06-291-56/+40
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* procfs: add ability to plug in auxiliary fdinfo providersCyrill Gorcunov2012-12-171-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch brings ability to print out auxiliary data associated with file in procfs interface /proc/pid/fdinfo/fd. In particular further patches make eventfd, evenpoll, signalfd and fsnotify to print additional information complete enough to restore these objects after checkpoint. To simplify the code we add show_fdinfo callback inside struct file_operations (as Al and Pavel are proposing). Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Acked-by: Pavel Emelyanov <xemul@parallels.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Andrey Vagin <avagin@openvz.org> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: James Bottomley <jbottomley@parallels.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Matthew Helsley <matt.helsley@gmail.com> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@onelan.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* don't leak O_CLOEXEC into ->f_flagsAl Viro2012-09-261-1/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* procfs: Convert /proc/pid/fdinfo/ handling routines to seq-file v2Cyrill Gorcunov2012-09-261-48/+64
| | | | | | | | | | | This patch converts /proc/pid/fdinfo/ handling routines to seq-file which is needed to extend seq operations and plug in auxiliary fdinfo provides from subsystems like eventfd/eventpoll/fsnotify. Note the proc_fd_link no longer call for proc_fd_info, simply because the guts of proc_fd_info() got merged into ->show() of that seq_file Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* procfs: Move /proc/pid/fd[info] handling code to fd.[ch]Cyrill Gorcunov2012-09-261-0/+351
This patch prepares the ground for further extension of /proc/pid/fd[info] handling code by moving fdinfo handling code into fs/proc/fd.c. I think such move makes both fs/proc/base.c and fs/proc/fd.c easier to read. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Acked-by: Pavel Emelyanov <xemul@parallels.com> CC: Al Viro <viro@ZenIV.linux.org.uk> CC: Alexey Dobriyan <adobriyan@gmail.com> CC: Andrew Morton <akpm@linux-foundation.org> CC: James Bottomley <jbottomley@parallels.com> CC: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> CC: Alexey Dobriyan <adobriyan@gmail.com> CC: Matthew Helsley <matt.helsley@gmail.com> CC: "J. Bruce Fields" <bfields@fieldses.org> CC: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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