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path: root/fs/autofs/expire.c (follow)
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2019-05-24treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 83Thomas Gleixner1-4/+1
Based on 1 normalized pattern(s): this file is part of the linux kernel and is made available under the terms of the gnu general public license version 2 or at your option any later version incorporated herein by reference extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 18 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Armijn Hemel <armijn@tjaldur.nl> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520075211.321157221@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-01autofs: drop dentry reference only when it is never usedPan Bian1-1/+2
autofs_expire_run() calls dput(dentry) to drop the reference count of dentry. However, dentry is read via autofs_dentry_ino(dentry) after that. This may result in a use-free-bug. The patch drops the reference count of dentry only when it is never used. Link: http://lkml.kernel.org/r/154725122396.11260.16053424107144453867.stgit@pluto-themaw-net Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-22autofs: add AUTOFS_EXP_FORCED flagIan Kent1-12/+50
The userspace automount(8) daemon is meant to perform a forced expire when sent a SIGUSR2. But since the expiration is routed through the kernel and the kernel doesn't send an expire request if the mount is busy this hasn't worked at least since autofs version 5. Add an AUTOFS_EXP_FORCED flag to allow implemention of the feature and bump the protocol version so user space can check if it's implemented if needed. Link: http://lkml.kernel.org/r/152937734715.21213.6594007182776598970.stgit@pluto.themaw.net Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-22autofs: make expire flags usage consistent with v5 paramsIan Kent1-33/+28
Make the usage of the expire flags consistent by naming the expire flags the same as it is named in the version 5 miscelaneous ioctl parameters and only check the bit flags when needed. Link: http://lkml.kernel.org/r/152937734046.21213.9454131988766280028.stgit@pluto.themaw.net Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-22autofs: make autofs_expire_indirect() staticIan Kent1-4/+4
autofs_expire_indirect() isn't used outside of fs/autofs/expire.c so make it static. Link: http://lkml.kernel.org/r/152937733512.21213.10509996499623738446.stgit@pluto.themaw.net Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-22autofs: make autofs_expire_direct() staticIan Kent1-4/+4
autofs_expire_direct() isn't used outside of fs/autofs/expire.c so make it static. Link: http://lkml.kernel.org/r/152937732944.21213.11821977712410930973.stgit@pluto.themaw.net Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-22autofs: fix clearing AUTOFS_EXP_LEAVES in autofs_expire_indirect()Ian Kent1-1/+1
The expire flag AUTOFS_EXP_LEAVES is cleared before the second call to should_expire() in autofs_expire_indirect() but the parameter passed in the second call is incorrect. Fortunately AUTOFS_EXP_LEAVES expire flag has not been used for a long time but might be needed in the future so fix it rather than remove the expire leaves functionality. Link: http://lkml.kernel.org/r/152937732410.21213.7447294898147765076.stgit@pluto.themaw.net Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-22autofs: fix inconsistent use of now variableIan Kent1-7/+3
The global variable "now" in fs/autofs/expire.c is used in an inconsistent way, sometimes using jiffies directly, and sometimes using the "now" variable, and setting it isn't done consistently either. But the autofs dentry info last_used field is only updated during path walks or during expire so jiffies can be used directly and the global variable "now" removed. Link: http://lkml.kernel.org/r/152937731702.21213.7371321165189170865.stgit@pluto.themaw.net Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-06-07autofs: copy autofs4 to autofsIan Kent1-0/+631
Copy source files from the autofs4 directory to the autofs directory. Link: http://lkml.kernel.org/r/152626705013.28589.931913083997578251.stgit@pluto.themaw.net Signed-off-by: Ian Kent <raven@themaw.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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