summaryrefslogtreecommitdiffstats
path: root/fs
diff options
context:
space:
mode:
Diffstat (limited to 'fs')
-rw-r--r--fs/gfs2/ops_address.c2
-rw-r--r--fs/gfs2/ops_file.c2
-rw-r--r--fs/gfs2/ops_vm.c36
-rw-r--r--fs/ncpfs/mmap.c23
-rw-r--r--fs/ocfs2/aops.c2
-rw-r--r--fs/ocfs2/mmap.c17
-rw-r--r--fs/xfs/linux-2.6/xfs_file.c23
7 files changed, 53 insertions, 52 deletions
diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c
index 26c888890c24..ce90032c010e 100644
--- a/fs/gfs2/ops_address.c
+++ b/fs/gfs2/ops_address.c
@@ -251,7 +251,7 @@ static int gfs2_readpage(struct file *file, struct page *page)
if (file) {
gf = file->private_data;
if (test_bit(GFF_EXLOCK, &gf->f_flags))
- /* gfs2_sharewrite_nopage has grabbed the ip->i_gl already */
+ /* gfs2_sharewrite_fault has grabbed the ip->i_gl already */
goto skip_lock;
}
gfs2_holder_init(ip->i_gl, LM_ST_SHARED, GL_ATIME|LM_FLAG_TRY_1CB, &gh);
diff --git a/fs/gfs2/ops_file.c b/fs/gfs2/ops_file.c
index bad0b24cb773..581ac11b2656 100644
--- a/fs/gfs2/ops_file.c
+++ b/fs/gfs2/ops_file.c
@@ -364,7 +364,7 @@ static int gfs2_mmap(struct file *file, struct vm_area_struct *vma)
else
vma->vm_ops = &gfs2_vm_ops_private;
- vma->vm_flags |= VM_CAN_INVALIDATE;
+ vma->vm_flags |= VM_CAN_INVALIDATE|VM_CAN_NONLINEAR;
gfs2_glock_dq_uninit(&i_gh);
diff --git a/fs/gfs2/ops_vm.c b/fs/gfs2/ops_vm.c
index d5a98cbfebdc..e9fe6eb74e75 100644
--- a/fs/gfs2/ops_vm.c
+++ b/fs/gfs2/ops_vm.c
@@ -27,13 +27,13 @@
#include "trans.h"
#include "util.h"
-static struct page *gfs2_private_nopage(struct vm_area_struct *area,
- unsigned long address, int *type)
+static struct page *gfs2_private_fault(struct vm_area_struct *vma,
+ struct fault_data *fdata)
{
- struct gfs2_inode *ip = GFS2_I(area->vm_file->f_mapping->host);
+ struct gfs2_inode *ip = GFS2_I(vma->vm_file->f_mapping->host);
set_bit(GIF_PAGED, &ip->i_flags);
- return filemap_nopage(area, address, type);
+ return filemap_fault(vma, fdata);
}
static int alloc_page_backing(struct gfs2_inode *ip, struct page *page)
@@ -104,16 +104,14 @@ out:
return error;
}
-static struct page *gfs2_sharewrite_nopage(struct vm_area_struct *area,
- unsigned long address, int *type)
+static struct page *gfs2_sharewrite_fault(struct vm_area_struct *vma,
+ struct fault_data *fdata)
{
- struct file *file = area->vm_file;
+ struct file *file = vma->vm_file;
struct gfs2_file *gf = file->private_data;
struct gfs2_inode *ip = GFS2_I(file->f_mapping->host);
struct gfs2_holder i_gh;
struct page *result = NULL;
- unsigned long index = ((address - area->vm_start) >> PAGE_CACHE_SHIFT) +
- area->vm_pgoff;
int alloc_required;
int error;
@@ -124,23 +122,27 @@ static struct page *gfs2_sharewrite_nopage(struct vm_area_struct *area,
set_bit(GIF_PAGED, &ip->i_flags);
set_bit(GIF_SW_PAGED, &ip->i_flags);
- error = gfs2_write_alloc_required(ip, (u64)index << PAGE_CACHE_SHIFT,
- PAGE_CACHE_SIZE, &alloc_required);
- if (error)
+ error = gfs2_write_alloc_required(ip,
+ (u64)fdata->pgoff << PAGE_CACHE_SHIFT,
+ PAGE_CACHE_SIZE, &alloc_required);
+ if (error) {
+ fdata->type = VM_FAULT_OOM; /* XXX: are these right? */
goto out;
+ }
set_bit(GFF_EXLOCK, &gf->f_flags);
- result = filemap_nopage(area, address, type);
+ result = filemap_fault(vma, fdata);
clear_bit(GFF_EXLOCK, &gf->f_flags);
- if (!result || result == NOPAGE_OOM)
+ if (!result)
goto out;
if (alloc_required) {
error = alloc_page_backing(ip, result);
if (error) {
- if (area->vm_flags & VM_CAN_INVALIDATE)
+ if (vma->vm_flags & VM_CAN_INVALIDATE)
unlock_page(result);
page_cache_release(result);
+ fdata->type = VM_FAULT_OOM;
result = NULL;
goto out;
}
@@ -154,10 +156,10 @@ out:
}
struct vm_operations_struct gfs2_vm_ops_private = {
- .nopage = gfs2_private_nopage,
+ .fault = gfs2_private_fault,
};
struct vm_operations_struct gfs2_vm_ops_sharewrite = {
- .nopage = gfs2_sharewrite_nopage,
+ .fault = gfs2_sharewrite_fault,
};
diff --git a/fs/ncpfs/mmap.c b/fs/ncpfs/mmap.c
index 5416673418b8..af48b792ca04 100644
--- a/fs/ncpfs/mmap.c
+++ b/fs/ncpfs/mmap.c
@@ -25,8 +25,8 @@
/*
* Fill in the supplied page for mmap
*/
-static struct page* ncp_file_mmap_nopage(struct vm_area_struct *area,
- unsigned long address, int *type)
+static struct page* ncp_file_mmap_fault(struct vm_area_struct *area,
+ struct fault_data *fdata)
{
struct file *file = area->vm_file;
struct dentry *dentry = file->f_path.dentry;
@@ -40,15 +40,17 @@ static struct page* ncp_file_mmap_nopage(struct vm_area_struct *area,
page = alloc_page(GFP_HIGHUSER); /* ncpfs has nothing against high pages
as long as recvmsg and memset works on it */
- if (!page)
- return page;
+ if (!page) {
+ fdata->type = VM_FAULT_OOM;
+ return NULL;
+ }
pg_addr = kmap(page);
- address &= PAGE_MASK;
- pos = address - area->vm_start + (area->vm_pgoff << PAGE_SHIFT);
+ pos = fdata->pgoff << PAGE_SHIFT;
count = PAGE_SIZE;
- if (address + PAGE_SIZE > area->vm_end) {
- count = area->vm_end - address;
+ if (fdata->address + PAGE_SIZE > area->vm_end) {
+ WARN_ON(1); /* shouldn't happen? */
+ count = area->vm_end - fdata->address;
}
/* what we can read in one go */
bufsize = NCP_SERVER(inode)->buffer_size;
@@ -91,15 +93,14 @@ static struct page* ncp_file_mmap_nopage(struct vm_area_struct *area,
* fetches from the network, here the analogue of disk.
* -- wli
*/
- if (type)
- *type = VM_FAULT_MAJOR;
+ fdata->type = VM_FAULT_MAJOR;
count_vm_event(PGMAJFAULT);
return page;
}
static struct vm_operations_struct ncp_file_mmap =
{
- .nopage = ncp_file_mmap_nopage,
+ .fault = ncp_file_mmap_fault,
};
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 84bf6e79de23..460d440310f2 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -232,7 +232,7 @@ static int ocfs2_readpage(struct file *file, struct page *page)
* might now be discovering a truncate that hit on another node.
* block_read_full_page->get_block freaks out if it is asked to read
* beyond the end of a file, so we check here. Callers
- * (generic_file_read, fault->nopage) are clever enough to check i_size
+ * (generic_file_read, vm_ops->fault) are clever enough to check i_size
* and notice that the page they just read isn't needed.
*
* XXX sys_readahead() seems to get that wrong?
diff --git a/fs/ocfs2/mmap.c b/fs/ocfs2/mmap.c
index 904f39ff5340..cd75508b1c8a 100644
--- a/fs/ocfs2/mmap.c
+++ b/fs/ocfs2/mmap.c
@@ -60,24 +60,23 @@ static inline int ocfs2_vm_op_unblock_sigs(sigset_t *oldset)
return sigprocmask(SIG_SETMASK, oldset, NULL);
}
-static struct page *ocfs2_nopage(struct vm_area_struct * area,
- unsigned long address,
- int *type)
+static struct page *ocfs2_fault(struct vm_area_struct *area,
+ struct fault_data *fdata)
{
- struct page *page = NOPAGE_SIGBUS;
+ struct page *page = NULL;
sigset_t blocked, oldset;
int ret;
- mlog_entry("(area=%p, address=%lu, type=%p)\n", area, address,
- type);
+ mlog_entry("(area=%p, page offset=%lu)\n", area, fdata->pgoff);
ret = ocfs2_vm_op_block_sigs(&blocked, &oldset);
if (ret < 0) {
+ fdata->type = VM_FAULT_SIGBUS;
mlog_errno(ret);
goto out;
}
- page = filemap_nopage(area, address, type);
+ page = filemap_fault(area, fdata);
ret = ocfs2_vm_op_unblock_sigs(&oldset);
if (ret < 0)
@@ -209,7 +208,7 @@ out:
}
static struct vm_operations_struct ocfs2_file_vm_ops = {
- .nopage = ocfs2_nopage,
+ .fault = ocfs2_fault,
.page_mkwrite = ocfs2_page_mkwrite,
};
@@ -226,7 +225,7 @@ int ocfs2_mmap(struct file *file, struct vm_area_struct *vma)
ocfs2_meta_unlock(file->f_dentry->d_inode, lock_level);
out:
vma->vm_ops = &ocfs2_file_vm_ops;
- vma->vm_flags |= VM_CAN_INVALIDATE;
+ vma->vm_flags |= VM_CAN_INVALIDATE | VM_CAN_NONLINEAR;
return 0;
}
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index 92b2f225712f..f12e80a69c68 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -213,18 +213,19 @@ xfs_file_fsync(
#ifdef CONFIG_XFS_DMAPI
STATIC struct page *
-xfs_vm_nopage(
- struct vm_area_struct *area,
- unsigned long address,
- int *type)
+xfs_vm_fault(
+ struct vm_area_struct *vma,
+ struct fault_data *fdata)
{
- struct inode *inode = area->vm_file->f_path.dentry->d_inode;
+ struct inode *inode = vma->vm_file->f_path.dentry->d_inode;
bhv_vnode_t *vp = vn_from_inode(inode);
ASSERT_ALWAYS(vp->v_vfsp->vfs_flag & VFS_DMI);
- if (XFS_SEND_MMAP(XFS_VFSTOM(vp->v_vfsp), area, 0))
+ if (XFS_SEND_MMAP(XFS_VFSTOM(vp->v_vfsp), vma, 0)) {
+ fdata->type = VM_FAULT_SIGBUS;
return NULL;
- return filemap_nopage(area, address, type);
+ }
+ return filemap_fault(vma, fdata);
}
#endif /* CONFIG_XFS_DMAPI */
@@ -310,7 +311,7 @@ xfs_file_mmap(
struct vm_area_struct *vma)
{
vma->vm_ops = &xfs_file_vm_ops;
- vma->vm_flags |= VM_CAN_INVALIDATE;
+ vma->vm_flags |= VM_CAN_INVALIDATE | VM_CAN_NONLINEAR;
#ifdef CONFIG_XFS_DMAPI
if (vn_from_inode(filp->f_path.dentry->d_inode)->v_vfsp->vfs_flag & VFS_DMI)
@@ -465,14 +466,12 @@ const struct file_operations xfs_dir_file_operations = {
};
static struct vm_operations_struct xfs_file_vm_ops = {
- .nopage = filemap_nopage,
- .populate = filemap_populate,
+ .fault = filemap_fault,
};
#ifdef CONFIG_XFS_DMAPI
static struct vm_operations_struct xfs_dmapi_file_vm_ops = {
- .nopage = xfs_vm_nopage,
- .populate = filemap_populate,
+ .fault = xfs_vm_fault,
#ifdef HAVE_VMOP_MPROTECT
.mprotect = xfs_vm_mprotect,
#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-10 19:09:44 +0000