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Date: Tue, 19 Aug 2008 19:16:05 -0700 From: <gregkh@...e.de> To: gregkh@...e.de, akpm@...ux-foundation.org, benjamin.thery@...l.net, containers@...ts.osdl.org, dlezcano@...ibm.com, ebiederm@...ssion.com, htejun@...il.com, netdev@...r.kernel.org, tj@...nel.org, viro@....linux.org.uk Subject: patch sysfs-implement-__sysfs_get_dentry.patch added to gregkh-2.6 tree This is a note to let you know that I've just added the patch titled Subject: sysfs: Implement __sysfs_get_dentry to my gregkh-2.6 tree. Its filename is sysfs-implement-__sysfs_get_dentry.patch This tree can be found at http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/patches/ >From ebiederm@...ssion.com Thu Jul 3 18:11:48 2008 From: ebiederm@...ssion.com (Eric W. Biederman) Date: Thu, 03 Jul 2008 18:09:04 -0700 Subject: sysfs: Implement __sysfs_get_dentry To: Greg Kroah-Hartman <gregkh@...e.de>, Andrew Morton <akpm@...ux-foundation.org> Cc: Tejun Heo <htejun@...il.com>, Daniel Lezcano <dlezcano@...ibm.com>, linux-kernel@...r.kernel.org, Al Viro <viro@....linux.org.uk>, Linux Containers <containers@...ts.osdl.org>, Benjamin Thery <benjamin.thery@...l.net>, <netdev@...r.kernel.org> Message-ID: <m1hcb6ihfz.fsf_-_@...do.ebiederm.org> From: Eric W. Biederman <ebiederm@...ssion.com> This function is similar but much simpler to sysfs_get_dentry returns a sysfs dentry if one curently exists. Signed-off-by: Eric W. Biederman <ebiederm@...ssion.com> Signed-off-by: Benjamin Thery <benjamin.thery@...l.net> Signed-off-by: Daniel Lezcano <dlezcano@...ibm.com> Acked-by: Tejun Heo <tj@...nel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de> --- fs/sysfs/dir.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -795,6 +795,45 @@ void sysfs_remove_dir(struct kobject * k __sysfs_remove_dir(sd); } +/** + * __sysfs_get_dentry - get dentry for the given sysfs_dirent + * @sb: superblock of the dentry to return + * @sd: sysfs_dirent of interest + * + * Get dentry for @sd. Only return a dentry if one currently + * exists. + * + * LOCKING: + * Kernel thread context (may sleep) + * + * RETURNS: + * Pointer to found dentry on success, NULL on failure. + */ +static struct dentry *__sysfs_get_dentry(struct super_block *sb, + struct sysfs_dirent *sd) +{ + struct inode *inode; + struct dentry *dentry = NULL; + + inode = ilookup5_nowait(sysfs_sb, sd->s_ino, sysfs_ilookup_test, sd); + if (inode && !(inode->i_state & I_NEW)) { + struct dentry *alias; + spin_lock(&dcache_lock); + list_for_each_entry(alias, &inode->i_dentry, d_alias) { + if (!IS_ROOT(alias) && d_unhashed(alias)) + continue; + if (alias->d_sb != sb) + continue; + dentry = alias; + dget_locked(dentry); + break; + } + spin_unlock(&dcache_lock); + } + iput(inode); + return dentry; +} + int sysfs_rename_dir(struct kobject * kobj, const char *new_name) { struct sysfs_dirent *sd = kobj->sd; Patches currently in gregkh-2.6 which might be from gregkh@...e.de are .git/logs/refs/heads/master .git/logs/refs/heads/origin .git/logs/refs/remotes/aria/master .git/logs/refs/remotes/aria/origin .git/logs/HEAD bad/pci-domain/pci-device-ensure-sysdata-initialised.patch bad/pci-domain/pci-fix-the-x86-pci-domain-support-fix.patch bad/pci-domain/x86-pci-domain-support-struct-pci_sysdata.patch bad/pci-domain/x86-pci-domain-support-a-humble-fix.patch bad/pci-domain/x86-pci-domain-support-the-meat.patch bad/relayfs/relay-consolidate-relayfs-core-into-kernel-relay.c.patch bad/relayfs/relay-relay-header-cleanup.patch bad/relayfs/sysfs-add-__attr_relay-helper-for-relay-attributes.patch bad/relayfs/sysfs-relay-channel-buffers-as-sysfs-attributes.patch bad/usbip/usb-usbip-more-dead-code-fix.patch bad/usbip/usb-usbip-build-fix.patch bad/usbip/usb-usbip-warning-fixes.patch bad/ndevfs.patch bad/driver-sample.sh.patch bad/driver-model-convert-driver-model-to-mutexes.patch bad/gpl_future-test.patch bad/gregkh-debugfs_example.patch bad/i2c-device-id-lm75.patch bad/speakup-kconfig-fix.patch bad/speakup-build-fix.patch bad/pci-test-that-drivers-properly-call-pci_set_master.patch bad/pci-use-new-multi-phase-suspend-infrastructure.patch bad/speakup-core.patch bad/uio.patch bad/usbfs2.patch bad/no-more-non-gpl-modules.patch bad/usb-serial-serqt_usb.patch bad/spi-device.patch bad/ata_piix-multithread.patch bad/uio-irq.patch bad/sysfs-crash-debugging.patch bad/pci-dynamic-id-cleanup.patch bad/pci-piggy-bus.patch bad/input-device_type.patch bad/usb-iphone-charge.patch bad/sysfs-test.patch bad/ohci-fix-toggle-bit-desynchronization-when-canceling-urbs.patch bad/ldp/dvb-add-firesat-driver.patch bad/ldp/video-add-the-go7007-driver.patch bad/ldp/framebuffer-add-the-via-framebuffer-driver.patch bad/ldp/net-add-alacritech-slicoss-driver.patch bad/ldp/aectc-add-the-aectc-driver.patch bad/ldp/me4000-firmware-file.patch bad/ldp/novfs-add-the-novell-filesystem-client-kernel-module.patch bad/ldp/net-add-et131x-driver.patch bad/ldp/oms-add-oms-maxp-driver.patch bad/ldp/me4000-add-pci-data-collection-driver.patch bad/ldp/usb-add-usb-test-and-measurement-class-driver.patch bad/ldp/kolter_1616-add-kolter_1616-pci-i-o-driver.patch bad/ldp.next/usb-add-option-hso-driver.patch bad/ldp.next/usb-add-sensoray-2255-v4l-driver.patch bad/ldp.next/input-add-appleir-driver.patch gregkh/gkh-version.patch gregkh/sysrq-u-laptop.patch usb/usb-gotemp.patch usb/hso-fix-oops-in-read-write-callbacks.patch usb/hso-fix-refcounting-on-the-ttyhsx-devices.patch usb/usb-hso-make-tty_operations-const.patch usb/usb-hso-minor-fixes-due-to-code-review.patch usb/usb-add-config_usb_debug_messages-and-usb_dbg.patch usb/usb-convert-the-usb-core-code-to-use-usb_dbg.patch usb/usb-remove-config_usb_debug.patch usb/usb-convert-the-usb-host-controller-code-to-use-usb_dbg.patch usb/usb-remove-warn-macro-from-usb.h.patch usb/usb-remove-info-macro-from-usb.h.patch usb/hso-icon-322-detection-fix.patch usb/hso-dev_kfree_skb-crash-fix.patch usb/usb-add-new-pm-callback-methods-for-usb.patch usb/drivers-usb-class-usblp.c-adjust-error-handling-code.patch usb/usb-kill-urbs-permanently.patch usb/usb-extend-poisoning-to-anchors.patch usb/ub-remove-sg_stat.patch usb/usb-added-driver-for-a-delcom-usb-7-segment-led-display.patch usb/usb-add-udev-argument-to-interface-suspend-resume-functions.patch usb/usb-defer-set-interface-for-suspended-devices.patch usb/usb-don-t-rebind-before-complete-callback.patch usb/usb-gadget-dummy_hcd-implement-set_wedge.patch usb/usb-gadget-kconfig-cleanup.patch usb/usb-gadget-net2280-implement-set_wedge.patch usb/usb-let-some-usb-host-controllers-get-irq-flags-from-resource.patch usb/usb-removed-unused-include-version.h.patch usb.current/usb-cdc-acm-quirk-for-conexant-cx93010-usb-modem.patch usb.current/usb-fix-bug-in-usb_unlink_anchored_urbs.patch usb.current/usb-fix-pxa27x_udc-usb-speed-handling.patch usb.current/usb-isp1760-fixed-trivial-math-in-comment.patch usb.current/usb-serial-option-support-hsdpa-modem-a2502.patch HOWTO driver-core/sysfs-crash-debugging.patch driver-core/warn-when-statically-allocated-kobjects-are-used.patch driver-core/usb-gadget-make-gadget_core.ko.patch driver-core/net-convert-the-phy_device-file-to-use-bus_find_device_by_name.patch driver-core/s390-bus_id-dev_set_name-for-css-and-ccw-busses.patch driver-core/driver-core-make-struct-platform_pm_ops-static.patch driver-core/sysfs-support-sysfs_notify-from-atomic-context-with-new-sysfs_notify_dirent.patch driver-core/driver-core-basic-infrastructure-for-per-module-dynamic-debug-messages.patch driver-core/usb-gadget-move-f_acm.c-and-u_serial.c-gadget_acm_core.ko.patch driver-core/usb-gadget-move-f_ecm.c-to-gadget_ecm_core.ko.patch driver-core/usb-gadget-move-u_ether.c-to-gadget_ether_core.ko.patch driver-core/usb-gadget-move-library-files-into-g_cdc.ko.patch driver-core/usb-gadget-move-library-files-into-g_ether.ko.patch driver-core/usb-gadget-move-library-files-into-g_file_storage.ko.patch driver-core/usb-gadget-move-library-files-into-g_midi.ko.patch driver-core/usb-gadget-move-library-files-into-g_printer.ko.patch driver-core/usb-gadget-move-library-files-into-g_serial-ko.patch driver-core/usb-gadget-move-library-files-into-g_zero.ko.patch driver-core/device-create-block-convert-device_create_drvdata-to-device_create.patch driver-core/device-create-char-convert-device_create_drvdata-to-device_create.patch driver-core/device-create-ide-convert-device_create_drvdata-to-device_create.patch driver-core/device-create-ieee1394-convert-device_create_drvdata-to-device_create.patch driver-core/device-create-infiniband-convert-device_create_drvdata-to-device_create.patch driver-core/device-create-misc-convert-device_create_drvdata-to-device_create.patch driver-core/device-create-net-convert-device_create_drvdata-to-device_create.patch driver-core/device-create-remove-device_create_drvdata.patch driver-core/device-create-s390-convert-device_create_drvdata-to-device_create.patch driver-core/device-create-scsi-convert-device_create_drvdata-to-device_create.patch driver-core/device-create-sound-convert-device_create_drvdata-to-device_create.patch driver-core/device-create-usb-convert-device_create_drvdata-to-device_create.patch driver-core/device-create-video-convert-device_create_drvdata-to-device_create.patch driver-core/kobject-fix-kobject_rename-and-config_sysfs.patch driver-core/kobject-cleanup-kobject_rename-and-config_sysfs.patch driver-core/sysfs-implement-__sysfs_get_dentry.patch driver-core/sysfs-introduce-sysfs_sd_setattr-and-fix-sysfs_chmod.patch driver-core/sysfs-sysfs_get_dentry-add-a-sb-parameter.patch driver-core/sysfs-rename-support-multiple-superblocks.patch driver-core/sysfs-support-for-preventing-unmounts.patch driver-core/sysfs-sysfs_chmod_file-handle-multiple-superblocks.patch driver-core/driver-core-convert-to-new-device-api-to-allow-names-longer-than-20-chars.patch driver-core/driver-core-lguest-convert-to-new-device-api-to-allow-names-longer-than-20-chars.patch driver-core/driver-core-prepare-for-removal-of-20-char-limit-from-struct-device.patch driver-core/s390-bus_id-dev_set_name-changes.patch driver-core/s390-more-bus_id-dev_name-conversions.patch driver-core/s390-use-s390_root_dev_-in-kvm_virtio.patch driver-core/s390-bus_id-dev_name-conversions.patch driver-core/driver-core-provide-a-dev_set_name-that-handles-names-longer-than-20-chars.patch pending/perfmon-fix-up-some-static-kobject-usages.patch pending/kobject-change-sys-kernel-uids-to-not-use-a-kset.patch pending/kobjects-hook-them-up-to-the-debugobjects-infrastructure.patch pending/firmware-add-kconfig-and-makefile-to-build-the-firmware-samples.patch driver-core.current/dev_printk-constify-the-dev-argument.patch driver-core.current/drivers-base-driver.c-remove-unused-to_dev-macro.patch driver-core.current/japanese-translation-of-documentation-submitchecklist.patch driver-core.current/kobject-replace-all-occurrences-of-with-instead-of-only-the-first-one.patch driver-core.current/driver-model-anti-oopsing-medicine.patch driver-core.current/pm-don-t-skip-device-pm-init-when-config_pm_sleep-isn-t-set-and-config_pm-is-set.patch driver-core.current/driver-core-add-init_name-to-struct-device.patch driver-core.current/pm-remove-warn_on-from-device_pm_add.patch driver-core.current/block-drop-references-taken-by-class_find_device.patch driver-core.current/block-fix-partial-read-of-proc-partitions-diskstats.patch -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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