Loading Documentation/filesystems/Locking +6 −1 Original line number Diff line number Diff line Loading @@ -173,12 +173,13 @@ prototypes: sector_t (*bmap)(struct address_space *, sector_t); int (*invalidatepage) (struct page *, unsigned long); int (*releasepage) (struct page *, int); void (*freepage)(struct page *); int (*direct_IO)(int, struct kiocb *, const struct iovec *iov, loff_t offset, unsigned long nr_segs); int (*launder_page) (struct page *); locking rules: All except set_page_dirty may block All except set_page_dirty and freepage may block BKL PageLocked(page) i_mutex writepage: no yes, unlocks (see below) Loading @@ -193,6 +194,7 @@ perform_write: no n/a yes bmap: no invalidatepage: no yes releasepage: no yes freepage: no yes direct_IO: no launder_page: no yes Loading Loading @@ -288,6 +290,9 @@ buffers from the page in preparation for freeing it. It returns zero to indicate that the buffers are (or may be) freeable. If ->releasepage is zero, the kernel assumes that the fs has no private interest in the buffers. ->freepage() is called when the kernel is done dropping the page from the page cache. ->launder_page() may be called prior to releasing a page if it is still found to be dirty. It returns zero if the page was successfully cleaned, or an error value if not. Note that in order to prevent the page Loading Documentation/filesystems/vfs.txt +7 −0 Original line number Diff line number Diff line Loading @@ -534,6 +534,7 @@ struct address_space_operations { sector_t (*bmap)(struct address_space *, sector_t); int (*invalidatepage) (struct page *, unsigned long); int (*releasepage) (struct page *, int); void (*freepage)(struct page *); ssize_t (*direct_IO)(int, struct kiocb *, const struct iovec *iov, loff_t offset, unsigned long nr_segs); struct page* (*get_xip_page)(struct address_space *, sector_t, Loading Loading @@ -678,6 +679,12 @@ struct address_space_operations { need to ensure this. Possibly it can clear the PageUptodate bit if it cannot free private data yet. freepage: freepage is called once the page is no longer visible in the page cache in order to allow the cleanup of any private data. Since it may be called by the memory reclaimer, it should not assume that the original address_space mapping still exists, and it should not block. direct_IO: called by the generic read/write routines to perform direct_IO - that is IO requests which bypass the page cache and transfer data directly between the storage and the Loading Documentation/kernel-parameters.txt +0 −5 Original line number Diff line number Diff line Loading @@ -2167,11 +2167,6 @@ and is between 256 and 4096 characters. It is defined in the file reset_devices [KNL] Force drivers to reset the underlying device during initialization. resource_alloc_from_bottom Allocate new resources from the beginning of available space, not the end. If you need to use this, please report a bug. resume= [SWSUSP] Specify the partition device for software suspend Loading Documentation/power/runtime_pm.txt +2 −2 Original line number Diff line number Diff line Loading @@ -379,8 +379,8 @@ drivers/base/power/runtime.c and include/linux/pm_runtime.h: zero) bool pm_runtime_suspended(struct device *dev); - return true if the device's runtime PM status is 'suspended', or false otherwise - return true if the device's runtime PM status is 'suspended' and its 'power.disable_depth' field is equal to zero, or false otherwise void pm_runtime_allow(struct device *dev); - set the power.runtime_auto flag for the device and decrease its usage Loading MAINTAINERS +12 −4 Original line number Diff line number Diff line Loading @@ -559,14 +559,14 @@ W: http://maxim.org.za/at91_26.html S: Maintained ARM/BCMRING ARM ARCHITECTURE M: Leo Chen <leochen@broadcom.com> M: Jiandong Zheng <jdzheng@broadcom.com> M: Scott Branden <sbranden@broadcom.com> L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) S: Maintained F: arch/arm/mach-bcmring ARM/BCMRING MTD NAND DRIVER M: Leo Chen <leochen@broadcom.com> M: Jiandong Zheng <jdzheng@broadcom.com> M: Scott Branden <sbranden@broadcom.com> L: linux-mtd@lists.infradead.org S: Maintained Loading Loading @@ -815,7 +815,7 @@ F: drivers/mmc/host/msm_sdcc.c F: drivers/mmc/host/msm_sdcc.h F: drivers/serial/msm_serial.h F: drivers/serial/msm_serial.c T: git git://codeaurora.org/quic/kernel/dwalker/linux-msm.git T: git git://codeaurora.org/quic/kernel/davidb/linux-msm.git S: Maintained ARM/TOSA MACHINE SUPPORT Loading Loading @@ -5932,7 +5932,6 @@ F: include/linux/tty.h TULIP NETWORK DRIVERS M: Grant Grundler <grundler@parisc-linux.org> M: Kyle McMartin <kyle@mcmartin.ca> L: netdev@vger.kernel.org S: Maintained F: drivers/net/tulip/ Loading Loading @@ -6584,6 +6583,15 @@ F: include/linux/mfd/wm8400* F: include/sound/wm????.h F: sound/soc/codecs/wm* WORKQUEUE M: Tejun Heo <tj@kernel.org> L: linux-kernel@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git S: Maintained F: include/linux/workqueue.h F: kernel/workqueue.c F: Documentation/workqueue.txt X.25 NETWORK LAYER M: Andrew Hendry <andrew.hendry@gmail.com> L: linux-x25@vger.kernel.org Loading Loading
Documentation/filesystems/Locking +6 −1 Original line number Diff line number Diff line Loading @@ -173,12 +173,13 @@ prototypes: sector_t (*bmap)(struct address_space *, sector_t); int (*invalidatepage) (struct page *, unsigned long); int (*releasepage) (struct page *, int); void (*freepage)(struct page *); int (*direct_IO)(int, struct kiocb *, const struct iovec *iov, loff_t offset, unsigned long nr_segs); int (*launder_page) (struct page *); locking rules: All except set_page_dirty may block All except set_page_dirty and freepage may block BKL PageLocked(page) i_mutex writepage: no yes, unlocks (see below) Loading @@ -193,6 +194,7 @@ perform_write: no n/a yes bmap: no invalidatepage: no yes releasepage: no yes freepage: no yes direct_IO: no launder_page: no yes Loading Loading @@ -288,6 +290,9 @@ buffers from the page in preparation for freeing it. It returns zero to indicate that the buffers are (or may be) freeable. If ->releasepage is zero, the kernel assumes that the fs has no private interest in the buffers. ->freepage() is called when the kernel is done dropping the page from the page cache. ->launder_page() may be called prior to releasing a page if it is still found to be dirty. It returns zero if the page was successfully cleaned, or an error value if not. Note that in order to prevent the page Loading
Documentation/filesystems/vfs.txt +7 −0 Original line number Diff line number Diff line Loading @@ -534,6 +534,7 @@ struct address_space_operations { sector_t (*bmap)(struct address_space *, sector_t); int (*invalidatepage) (struct page *, unsigned long); int (*releasepage) (struct page *, int); void (*freepage)(struct page *); ssize_t (*direct_IO)(int, struct kiocb *, const struct iovec *iov, loff_t offset, unsigned long nr_segs); struct page* (*get_xip_page)(struct address_space *, sector_t, Loading Loading @@ -678,6 +679,12 @@ struct address_space_operations { need to ensure this. Possibly it can clear the PageUptodate bit if it cannot free private data yet. freepage: freepage is called once the page is no longer visible in the page cache in order to allow the cleanup of any private data. Since it may be called by the memory reclaimer, it should not assume that the original address_space mapping still exists, and it should not block. direct_IO: called by the generic read/write routines to perform direct_IO - that is IO requests which bypass the page cache and transfer data directly between the storage and the Loading
Documentation/kernel-parameters.txt +0 −5 Original line number Diff line number Diff line Loading @@ -2167,11 +2167,6 @@ and is between 256 and 4096 characters. It is defined in the file reset_devices [KNL] Force drivers to reset the underlying device during initialization. resource_alloc_from_bottom Allocate new resources from the beginning of available space, not the end. If you need to use this, please report a bug. resume= [SWSUSP] Specify the partition device for software suspend Loading
Documentation/power/runtime_pm.txt +2 −2 Original line number Diff line number Diff line Loading @@ -379,8 +379,8 @@ drivers/base/power/runtime.c and include/linux/pm_runtime.h: zero) bool pm_runtime_suspended(struct device *dev); - return true if the device's runtime PM status is 'suspended', or false otherwise - return true if the device's runtime PM status is 'suspended' and its 'power.disable_depth' field is equal to zero, or false otherwise void pm_runtime_allow(struct device *dev); - set the power.runtime_auto flag for the device and decrease its usage Loading
MAINTAINERS +12 −4 Original line number Diff line number Diff line Loading @@ -559,14 +559,14 @@ W: http://maxim.org.za/at91_26.html S: Maintained ARM/BCMRING ARM ARCHITECTURE M: Leo Chen <leochen@broadcom.com> M: Jiandong Zheng <jdzheng@broadcom.com> M: Scott Branden <sbranden@broadcom.com> L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) S: Maintained F: arch/arm/mach-bcmring ARM/BCMRING MTD NAND DRIVER M: Leo Chen <leochen@broadcom.com> M: Jiandong Zheng <jdzheng@broadcom.com> M: Scott Branden <sbranden@broadcom.com> L: linux-mtd@lists.infradead.org S: Maintained Loading Loading @@ -815,7 +815,7 @@ F: drivers/mmc/host/msm_sdcc.c F: drivers/mmc/host/msm_sdcc.h F: drivers/serial/msm_serial.h F: drivers/serial/msm_serial.c T: git git://codeaurora.org/quic/kernel/dwalker/linux-msm.git T: git git://codeaurora.org/quic/kernel/davidb/linux-msm.git S: Maintained ARM/TOSA MACHINE SUPPORT Loading Loading @@ -5932,7 +5932,6 @@ F: include/linux/tty.h TULIP NETWORK DRIVERS M: Grant Grundler <grundler@parisc-linux.org> M: Kyle McMartin <kyle@mcmartin.ca> L: netdev@vger.kernel.org S: Maintained F: drivers/net/tulip/ Loading Loading @@ -6584,6 +6583,15 @@ F: include/linux/mfd/wm8400* F: include/sound/wm????.h F: sound/soc/codecs/wm* WORKQUEUE M: Tejun Heo <tj@kernel.org> L: linux-kernel@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git S: Maintained F: include/linux/workqueue.h F: kernel/workqueue.c F: Documentation/workqueue.txt X.25 NETWORK LAYER M: Andrew Hendry <andrew.hendry@gmail.com> L: linux-x25@vger.kernel.org Loading