![Martin J. Bligh](/assets/img/avatar_default.png)
Val's cross-port of the ext3 reservations code into ext2. [mbligh@mbligh.org: Small type error for printk [akpm@linux-foundation.org: fix types, sync with ext3] [mbligh@mbligh.org: Bring ext2 reservations code in line with latest ext3] [akpm@linux-foundation.org: kill noisy printk] [akpm@linux-foundation.org: remember to dirty the gdp's block] [akpm@linux-foundation.org: cross-port the missed5dea5176e5
] [akpm@linux-foundation.org: cross-porte6022603b9
] [akpm@linux-foundation.org: Port the omitted08fb306fe6
] [akpm@linux-foundation.org: Backport the missed20acaa18d0
] [akpm@linux-foundation.org: fixes] [cmm@us.ibm.com: fix reservation extension] [bunk@stusta.de: make ext2_get_blocks() static] [hugh@veritas.com: fix hang] [hugh@veritas.com: ext2_new_blocks should reset the reservation window size] [hugh@veritas.com: ext2 balloc: fix off-by-one against rsv_end] [hugh@veritas.com: grp_goal 0 is a genuine goal (unlike -1), so ext2_try_to_allocate_with_rsv should treat it as such] [hugh@veritas.com: rbtree usage cleanup] [pbadari@us.ibm.com: Fix for ext2 reservation] [bunk@kernel.org: remove fs/ext2/balloc.c:reserve_blocks()] [hugh@veritas.com: ext2 balloc: use io_error label] Cc: "Martin J. Bligh" <mbligh@mbligh.org> Cc: Valerie Henson <val_henson@linux.intel.com> Cc: Mingming Cao <cmm@us.ibm.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
/*
|
|
* linux/fs/ext2/file.c
|
|
*
|
|
* Copyright (C) 1992, 1993, 1994, 1995
|
|
* Remy Card (card@masi.ibp.fr)
|
|
* Laboratoire MASI - Institut Blaise Pascal
|
|
* Universite Pierre et Marie Curie (Paris VI)
|
|
*
|
|
* from
|
|
*
|
|
* linux/fs/minix/file.c
|
|
*
|
|
* Copyright (C) 1991, 1992 Linus Torvalds
|
|
*
|
|
* ext2 fs regular file handling primitives
|
|
*
|
|
* 64-bit file support on 64-bit platforms by Jakub Jelinek
|
|
* (jj@sunsite.ms.mff.cuni.cz)
|
|
*/
|
|
|
|
#include <linux/time.h>
|
|
#include "ext2.h"
|
|
#include "xattr.h"
|
|
#include "acl.h"
|
|
|
|
/*
|
|
* Called when filp is released. This happens when all file descriptors
|
|
* for a single struct file are closed. Note that different open() calls
|
|
* for the same file yield different struct file structures.
|
|
*/
|
|
static int ext2_release_file (struct inode * inode, struct file * filp)
|
|
{
|
|
if (filp->f_mode & FMODE_WRITE) {
|
|
mutex_lock(&EXT2_I(inode)->truncate_mutex);
|
|
ext2_discard_reservation(inode);
|
|
mutex_unlock(&EXT2_I(inode)->truncate_mutex);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* We have mostly NULL's here: the current defaults are ok for
|
|
* the ext2 filesystem.
|
|
*/
|
|
const struct file_operations ext2_file_operations = {
|
|
.llseek = generic_file_llseek,
|
|
.read = do_sync_read,
|
|
.write = do_sync_write,
|
|
.aio_read = generic_file_aio_read,
|
|
.aio_write = generic_file_aio_write,
|
|
.ioctl = ext2_ioctl,
|
|
#ifdef CONFIG_COMPAT
|
|
.compat_ioctl = ext2_compat_ioctl,
|
|
#endif
|
|
.mmap = generic_file_mmap,
|
|
.open = generic_file_open,
|
|
.release = ext2_release_file,
|
|
.fsync = ext2_sync_file,
|
|
.splice_read = generic_file_splice_read,
|
|
.splice_write = generic_file_splice_write,
|
|
};
|
|
|
|
#ifdef CONFIG_EXT2_FS_XIP
|
|
const struct file_operations ext2_xip_file_operations = {
|
|
.llseek = generic_file_llseek,
|
|
.read = xip_file_read,
|
|
.write = xip_file_write,
|
|
.ioctl = ext2_ioctl,
|
|
#ifdef CONFIG_COMPAT
|
|
.compat_ioctl = ext2_compat_ioctl,
|
|
#endif
|
|
.mmap = xip_file_mmap,
|
|
.open = generic_file_open,
|
|
.release = ext2_release_file,
|
|
.fsync = ext2_sync_file,
|
|
};
|
|
#endif
|
|
|
|
const struct inode_operations ext2_file_inode_operations = {
|
|
.truncate = ext2_truncate,
|
|
#ifdef CONFIG_EXT2_FS_XATTR
|
|
.setxattr = generic_setxattr,
|
|
.getxattr = generic_getxattr,
|
|
.listxattr = ext2_listxattr,
|
|
.removexattr = generic_removexattr,
|
|
#endif
|
|
.setattr = ext2_setattr,
|
|
.permission = ext2_permission,
|
|
};
|