/* * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. * All Rights Reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef __XFS_RTALLOC_H__ #define __XFS_RTALLOC_H__ /* kernel only definitions and functions */ struct xfs_mount; struct xfs_trans; #ifdef CONFIG_XFS_RT /* * Function prototypes for exported functions. */ /* * Allocate an extent in the realtime subvolume, with the usual allocation * parameters. The length units are all in realtime extents, as is the * result block number. */ int /* error */ xfs_rtallocate_extent( struct xfs_trans *tp, /* transaction pointer */ xfs_rtblock_t bno, /* starting block number to allocate */ xfs_extlen_t minlen, /* minimum length to allocate */ xfs_extlen_t maxlen, /* maximum length to allocate */ xfs_extlen_t *len, /* out: actual length allocated */ xfs_alloctype_t type, /* allocation type XFS_ALLOCTYPE... */ int wasdel, /* was a delayed allocation extent */ xfs_extlen_t prod, /* extent product factor */ xfs_rtblock_t *rtblock); /* out: start block allocated */ /* * Free an extent in the realtime subvolume. Length is expressed in * realtime extents, as is the block number. */ int /* error */ xfs_rtfree_extent( struct xfs_trans *tp, /* transaction pointer */ xfs_rtblock_t bno, /* starting block number to free */ xfs_extlen_t len); /* length of extent freed */ /* * Initialize realtime fields in the mount structure. */ int /* error */ xfs_rtmount_init( struct xfs_mount *mp); /* file system mount structure */ void xfs_rtunmount_inodes( struct xfs_mount *mp); /* * Get the bitmap and summary inodes into the mount structure * at mount time. */ int /* error */ xfs_rtmount_inodes( struct xfs_mount *mp); /* file system mount structure */ /* * Pick an extent for allocation at the start of a new realtime file. * Use the sequence number stored in the atime field of the bitmap inode. * Translate this to a fraction of the rtextents, and return the product * of rtextents and the fraction. * The fraction sequence is 0, 1/2, 1/4, 3/4, 1/8, ..., 7/8, 1/16, ... */ int /* error */ xfs_rtpick_extent( struct xfs_mount *mp, /* file system mount point */ struct xfs_trans *tp, /* transaction pointer */ xfs_extlen_t len, /* allocation length (rtextents) */ xfs_rtblock_t *pick); /* result rt extent */ /* * Grow the realtime area of the filesystem. */ int xfs_growfs_rt( struct xfs_mount *mp, /* file system mount structure */ xfs_growfs_rt_t *in); /* user supplied growfs struct */ /* * From xfs_rtbitmap.c */ int xfs_rtcheck_range(struct xfs_mount *mp, struct xfs_trans *tp, xfs_rtblock_t start, xfs_extlen_t len, int val, xfs_rtblock_t *new, int *stat); int xfs_rtfind_back(struct xfs_mount *mp, struct xfs_trans *tp, xfs_rtblock_t start, xfs_rtblock_t limit, xfs_rtblock_t *rtblock); int xfs_rtfind_forw(struct xfs_mount *mp, struct xfs_trans *tp, xfs_rtblock_t start, xfs_rtblock_t limit, xfs_rtblock_t *rtblock); int xfs_rtmodify_range(struct xfs_mount *mp, struct xfs_trans *tp, xfs_rtblock_t start, xfs_extlen_t len, int val); int xfs_rtmodify_summary_int(struct xfs_mount *mp, struct xfs_trans *tp, int log, xfs_rtblock_t bbno, int delta, xfs_buf_t **rbpp, xfs_fsblock_t *rsb, xfs_suminfo_t *sum); int xfs_rtmodify_summary(struct xfs_mount *mp, struct xfs_trans *tp, int log, xfs_rtblock_t bbno, int delta, xfs_buf_t **rbpp, xfs_fsblock_t *rsb); int xfs_rtfree_range(struct xfs_mount *mp, struct xfs_trans *tp, xfs_rtblock_t start, xfs_extlen_t len, struct xfs_buf **rbpp, xfs_fsblock_t *rsb); #else # define xfs_rtallocate_extent(t,b,min,max,l,a,f,p,rb) (ENOSYS) # define xfs_rtfree_extent(t,b,l) (ENOSYS) # define xfs_rtpick_extent(m,t,l,rb) (ENOSYS) # define xfs_growfs_rt(mp,in) (ENOSYS) static inline int /* error */ xfs_rtmount_init( xfs_mount_t *mp) /* file system mount structure */ { if (mp->m_sb.sb_rblocks == 0) return 0; xfs_warn(mp, "Not built with CONFIG_XFS_RT"); return -ENOSYS; } # define xfs_rtmount_inodes(m) (((mp)->m_sb.sb_rblocks == 0)? 0 : (ENOSYS)) # define xfs_rtunmount_inodes(m) #endif /* CONFIG_XFS_RT */ #endif /* __XFS_RTALLOC_H__ */ 9099c3c7bd6be3087b0ba'>patch) treef63906f41699c8e38af9d12b063e2ceab0286ef2 /Documentation/media/uapi/v4l/dev-subdev_files parente34bac726d27056081d0250c0e173e4b155aa340 (diff)parent868c97a846a73e937d835b09b8c885a69df50ec8 (diff)
Merge tag 'docs-4.10' of git://git.lwn.net/linuxHEADmaster
Pull documentation update from Jonathan Corbet: "These are the documentation changes for 4.10. It's another busy cycle for the docs tree, as the sphinx conversion continues. Highlights include: - Further work on PDF output, which remains a bit of a pain but should be more solid now. - Five more DocBook template files converted to Sphinx. Only 27 to go... Lots of plain-text files have also been converted and integrated. - Images in binary formats have been replaced with more source-friendly versions. - Various bits of organizational work, including the renaming of various files discussed at the kernel summit. - New documentation for the device_link mechanism. ... and, of course, lots of typo fixes and small updates" * tag 'docs-4.10' of git://git.lwn.net/linux: (193 commits) dma-buf: Extract dma-buf.rst Update Documentation/00-INDEX docs: 00-INDEX: document directories/files with no docs docs: 00-INDEX: remove non-existing entries docs: 00-INDEX: add missing entries for documentation files/dirs docs: 00-INDEX: consolidate process/ and admin-guide/ description scripts: add a script to check if Documentation/00-INDEX is sane Docs: change sh -> awk in REPORTING-BUGS Documentation/core-api/device_link: Add initial documentation core-api: remove an unexpected unident ppc/idle: Add documentation for powersave=off Doc: Correct typo, "Introdution" => "Introduction" Documentation/atomic_ops.txt: convert to ReST markup Documentation/local_ops.txt: convert to ReST markup Documentation/assoc_array.txt: convert to ReST markup docs-rst: parse-headers.pl: cleanup the documentation docs-rst: fix media cleandocs target docs-rst: media/Makefile: reorganize the rules docs-rst: media: build SVG from graphviz files docs-rst: replace bayer.png by a SVG image ...
Diffstat (limited to 'Documentation/media/uapi/v4l/dev-subdev_files')