#ifndef _UDF_I_H #define _UDF_I_H struct extent_position { struct buffer_head *bh; uint32_t offset; struct kernel_lb_addr block; }; struct udf_ext_cache { /* Extent position */ struct extent_position epos; /* Start logical offset in bytes */ loff_t lstart; }; /* * The i_data_sem and i_mutex serve for protection of allocation information * of a regular files and symlinks. This includes all extents belonging to * the file/symlink, a fact whether data are in-inode or in external data * blocks, preallocation, goal block information... When extents are read, * i_mutex or i_data_sem must be held (for reading is enough in case of * i_data_sem). When extents are changed, i_data_sem must be held for writing * and also i_mutex must be held. * * For directories i_mutex is used for all the necessary protection. */ struct udf_inode_info { struct timespec i_crtime; /* Physical address of inode */ struct kernel_lb_addr i_location; __u64 i_unique; __u32 i_lenEAttr; __u32 i_lenAlloc; __u64 i_lenExtents; __u32 i_next_alloc_block; __u32 i_next_alloc_goal; __u32 i_checkpoint; unsigned i_alloc_type : 3; unsigned i_efe : 1; /* extendedFileEntry */ unsigned i_use : 1; /* unallocSpaceEntry */ unsigned i_strat4096 : 1; unsigned reserved : 26; union { struct short_ad *i_sad; struct long_ad *i_lad; __u8 *i_data; } i_ext; struct rw_semaphore i_data_sem; struct udf_ext_cache cached_extent; /* Spinlock for protecting extent cache */ spinlock_t i_extent_cache_lock; struct inode vfs_inode; }; static inline struct udf_inode_info *UDF_I(struct inode *inode) { return container_of(inode, struct udf_inode_info, vfs_inode); } #endif /* _UDF_I_H) */ vate-remove&id=cdca06e4e85974d8a3503ab15709dbbaf90d3dd1'>refslogtreecommitdiff
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authorAlexander Stein <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 /include/net/dst_cache.h
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 'include/net/dst_cache.h')