/* * 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__ */ n <alexander.stein@systec-electronic.com>2017-01-30 12:35:28 +0100 committerLinus Walleij <linus.walleij@linaro.org>2017-01-30 15:53:57 +0100 commitcdca06e4e85974d8a3503ab15709dbbaf90d3dd1 (patch) tree268b0c01070a957006db97c88dccb5fb061440ff /net/ipv6/sit.c parent1b89970d81bbd52720fc64a3fe9572ee33588363 (diff)
pinctrl: baytrail: Add missing spinlock usage in byt_gpio_irq_handler
According to VLI64 Intel Atom E3800 Specification Update (#329901) concurrent read accesses may result in returning 0xffffffff and write accesses may be dropped silently. To workaround all accesses must be protected by locks. Cc: stable@vger.kernel.org Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'net/ipv6/sit.c')