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-rw-r--r--fs/gfs2/file.c56
1 files changed, 42 insertions, 14 deletions
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index c9384f932975..e0f98e483aec 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -160,7 +160,7 @@ static int gfs2_get_flags(struct file *filp, u32 __user *ptr)
gfs2_holder_init(ip->i_gl, LM_ST_SHARED, 0, &gh);
error = gfs2_glock_nq(&gh);
if (error)
- return error;
+ goto out_uninit;
fsflags = fsflags_cvt(gfs2_to_fsflags, ip->i_diskflags);
if (!S_ISDIR(inode->i_mode) && ip->i_diskflags & GFS2_DIF_JDATA)
@@ -169,6 +169,7 @@ static int gfs2_get_flags(struct file *filp, u32 __user *ptr)
error = -EFAULT;
gfs2_glock_dq(&gh);
+out_uninit:
gfs2_holder_uninit(&gh);
return error;
}
@@ -354,8 +355,8 @@ static int gfs2_allocate_page_backing(struct page *page)
{
struct inode *inode = page->mapping->host;
struct buffer_head bh;
- unsigned long size = PAGE_CACHE_SIZE;
- u64 lblock = page->index << (PAGE_CACHE_SHIFT - inode->i_blkbits);
+ unsigned long size = PAGE_SIZE;
+ u64 lblock = page->index << (PAGE_SHIFT - inode->i_blkbits);
do {
bh.b_state = 0;
@@ -386,7 +387,7 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
struct gfs2_sbd *sdp = GFS2_SB(inode);
struct gfs2_alloc_parms ap = { .aflags = 0, };
unsigned long last_index;
- u64 pos = page->index << PAGE_CACHE_SHIFT;
+ u64 pos = page->index << PAGE_SHIFT;
unsigned int data_blocks, ind_blocks, rblocks;
struct gfs2_holder gh;
loff_t size;
@@ -401,7 +402,7 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
if (ret)
goto out;
- gfs2_size_hint(vma->vm_file, pos, PAGE_CACHE_SIZE);
+ gfs2_size_hint(vma->vm_file, pos, PAGE_SIZE);
gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
ret = gfs2_glock_nq(&gh);
@@ -411,7 +412,7 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
set_bit(GLF_DIRTY, &ip->i_gl->gl_flags);
set_bit(GIF_SW_PAGED, &ip->i_flags);
- if (!gfs2_write_alloc_required(ip, pos, PAGE_CACHE_SIZE)) {
+ if (!gfs2_write_alloc_required(ip, pos, PAGE_SIZE)) {
lock_page(page);
if (!PageUptodate(page) || page->mapping != inode->i_mapping) {
ret = -EAGAIN;
@@ -424,7 +425,7 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
if (ret)
goto out_unlock;
- gfs2_write_calc_reserv(ip, PAGE_CACHE_SIZE, &data_blocks, &ind_blocks);
+ gfs2_write_calc_reserv(ip, PAGE_SIZE, &data_blocks, &ind_blocks);
ap.target = data_blocks + ind_blocks;
ret = gfs2_quota_lock_check(ip, &ap);
if (ret)
@@ -447,7 +448,7 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
lock_page(page);
ret = -EINVAL;
size = i_size_read(inode);
- last_index = (size - 1) >> PAGE_CACHE_SHIFT;
+ last_index = (size - 1) >> PAGE_SHIFT;
/* Check page index against inode size */
if (size == 0 || (page->index > last_index))
goto out_trans_end;
@@ -873,7 +874,7 @@ static long __gfs2_fallocate(struct file *file, int mode, loff_t offset, loff_t
rblocks += data_blocks ? data_blocks : 1;
error = gfs2_trans_begin(sdp, rblocks,
- PAGE_CACHE_SIZE/sdp->sd_sb.sb_bsize);
+ PAGE_SIZE/sdp->sd_sb.sb_bsize);
if (error)
goto out_trans_fail;
@@ -895,7 +896,10 @@ static long __gfs2_fallocate(struct file *file, int mode, loff_t offset, loff_t
mark_inode_dirty(inode);
}
- return generic_write_sync(file, pos, count);
+ if ((file->f_flags & O_DSYNC) || IS_SYNC(file->f_mapping->host))
+ return vfs_fsync_range(file, pos, pos + count - 1,
+ (file->f_flags & __O_SYNC) ? 0 : 1);
+ return 0;
out_trans_fail:
gfs2_inplace_release(ip);
@@ -950,6 +954,30 @@ out_uninit:
return ret;
}
+static ssize_t gfs2_file_splice_read(struct file *in, loff_t *ppos,
+ struct pipe_inode_info *pipe, size_t len,
+ unsigned int flags)
+{
+ struct inode *inode = in->f_mapping->host;
+ struct gfs2_inode *ip = GFS2_I(inode);
+ struct gfs2_holder gh;
+ int ret;
+
+ inode_lock(inode);
+
+ ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, 0, &gh);
+ if (ret) {
+ inode_unlock(inode);
+ return ret;
+ }
+
+ gfs2_glock_dq_uninit(&gh);
+ inode_unlock(inode);
+
+ return generic_file_splice_read(in, ppos, pipe, len, flags);
+}
+
+
static ssize_t gfs2_file_splice_write(struct pipe_inode_info *pipe,
struct file *out, loff_t *ppos,
size_t len, unsigned int flags)
@@ -1112,14 +1140,14 @@ const struct file_operations gfs2_file_fops = {
.fsync = gfs2_fsync,
.lock = gfs2_lock,
.flock = gfs2_flock,
- .splice_read = generic_file_splice_read,
+ .splice_read = gfs2_file_splice_read,
.splice_write = gfs2_file_splice_write,
.setlease = simple_nosetlease,
.fallocate = gfs2_fallocate,
};
const struct file_operations gfs2_dir_fops = {
- .iterate = gfs2_readdir,
+ .iterate_shared = gfs2_readdir,
.unlocked_ioctl = gfs2_ioctl,
.open = gfs2_open,
.release = gfs2_release,
@@ -1140,14 +1168,14 @@ const struct file_operations gfs2_file_fops_nolock = {
.open = gfs2_open,
.release = gfs2_release,
.fsync = gfs2_fsync,
- .splice_read = generic_file_splice_read,
+ .splice_read = gfs2_file_splice_read,
.splice_write = gfs2_file_splice_write,
.setlease = generic_setlease,
.fallocate = gfs2_fallocate,
};
const struct file_operations gfs2_dir_fops_nolock = {
- .iterate = gfs2_readdir,
+ .iterate_shared = gfs2_readdir,
.unlocked_ioctl = gfs2_ioctl,
.open = gfs2_open,
.release = gfs2_release,
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