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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/shmem_fs.h | |
download | kernel_samsung_aries-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip kernel_samsung_aries-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz kernel_samsung_aries-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.bz2 |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/linux/shmem_fs.h')
-rw-r--r-- | include/linux/shmem_fs.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/include/linux/shmem_fs.h b/include/linux/shmem_fs.h new file mode 100644 index 0000000..c3e5982 --- /dev/null +++ b/include/linux/shmem_fs.h @@ -0,0 +1,37 @@ +#ifndef __SHMEM_FS_H +#define __SHMEM_FS_H + +#include <linux/swap.h> +#include <linux/mempolicy.h> + +/* inode in-kernel data */ + +#define SHMEM_NR_DIRECT 16 + +struct shmem_inode_info { + spinlock_t lock; + unsigned long flags; + unsigned long alloced; /* data pages alloced to file */ + unsigned long swapped; /* subtotal assigned to swap */ + unsigned long next_index; /* highest alloced index + 1 */ + struct shared_policy policy; /* NUMA memory alloc policy */ + struct page *i_indirect; /* top indirect blocks page */ + swp_entry_t i_direct[SHMEM_NR_DIRECT]; /* first blocks */ + struct list_head swaplist; /* chain of maybes on swap */ + struct inode vfs_inode; +}; + +struct shmem_sb_info { + unsigned long max_blocks; /* How many blocks are allowed */ + unsigned long free_blocks; /* How many are left for allocation */ + unsigned long max_inodes; /* How many inodes are allowed */ + unsigned long free_inodes; /* How many are left for allocation */ + spinlock_t stat_lock; +}; + +static inline struct shmem_inode_info *SHMEM_I(struct inode *inode) +{ + return container_of(inode, struct shmem_inode_info, vfs_inode); +} + +#endif |