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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/fs/xfs/xfs_aops.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/fs/xfs/xfs_aops.h')
-rw-r--r-- | kernel/fs/xfs/xfs_aops.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/kernel/fs/xfs/xfs_aops.h b/kernel/fs/xfs/xfs_aops.h new file mode 100644 index 000000000..ac644e013 --- /dev/null +++ b/kernel/fs/xfs/xfs_aops.h @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2005-2006 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_AOPS_H__ +#define __XFS_AOPS_H__ + +extern mempool_t *xfs_ioend_pool; + +/* + * Types of I/O for bmap clustering and I/O completion tracking. + */ +enum { + XFS_IO_DELALLOC, /* covers delalloc region */ + XFS_IO_UNWRITTEN, /* covers allocated but uninitialized data */ + XFS_IO_OVERWRITE, /* covers already allocated extent */ +}; + +#define XFS_IO_TYPES \ + { XFS_IO_DELALLOC, "delalloc" }, \ + { XFS_IO_UNWRITTEN, "unwritten" }, \ + { XFS_IO_OVERWRITE, "overwrite" } + +/* + * xfs_ioend struct manages large extent writes for XFS. + * It can manage several multi-page bio's at once. + */ +typedef struct xfs_ioend { + struct xfs_ioend *io_list; /* next ioend in chain */ + unsigned int io_type; /* delalloc / unwritten */ + int io_error; /* I/O error code */ + atomic_t io_remaining; /* hold count */ + struct inode *io_inode; /* file being written to */ + struct buffer_head *io_buffer_head;/* buffer linked list head */ + struct buffer_head *io_buffer_tail;/* buffer linked list tail */ + size_t io_size; /* size of the extent */ + xfs_off_t io_offset; /* offset in the file */ + struct work_struct io_work; /* xfsdatad work queue */ + struct xfs_trans *io_append_trans;/* xact. for size update */ +} xfs_ioend_t; + +extern const struct address_space_operations xfs_address_space_operations; +extern int xfs_get_blocks(struct inode *, sector_t, struct buffer_head *, int); + +extern void xfs_count_page_state(struct page *, int *, int *); + +#endif /* __XFS_AOPS_H__ */ |