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orangefs: re-add flush_racache from out-of-tree 

Signed-off-by: Martin Brandenburg <martin@omnibond.com>
This commit is contained in:
Martin Brandenburg 2016-08-02 16:32:15 -04:00
parent 680908e504
commit ed1e158777
1 changed files with 33 additions and 1 deletions
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34
fs/orangefs/file.c
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@ -14,6 +14,32 @@
#include <linux/fs.h>
#include <linux/pagemap.h>
static int flush_racache(struct inode *inode)
{
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_kernel_op_s *new_op;
int ret;
gossip_debug(GOSSIP_UTILS_DEBUG,
"%s: %pU: Handle is %pU | fs_id %d\n", __func__,
get_khandle_from_ino(inode), &orangefs_inode->refn.khandle,
orangefs_inode->refn.fs_id);
new_op = op_alloc(ORANGEFS_VFS_OP_RA_FLUSH);
if (!new_op)
return -ENOMEM;
new_op->upcall.req.ra_cache_flush.refn = orangefs_inode->refn;
ret = service_operation(new_op, "orangefs_flush_racache",
get_interruptible_flag(inode));
gossip_debug(GOSSIP_UTILS_DEBUG, "%s: got return value of %d\n",
__func__, ret);
op_release(new_op);
return ret;
}
/*
* Copy to client-core's address space from the buffers specified
* by the iovec upto total_size bytes.
@ -597,9 +623,15 @@ static int orangefs_file_release(struct inode *inode, struct file *file)
*/
if (file->f_path.dentry->d_inode &&
file->f_path.dentry->d_inode->i_mapping &&
mapping_nrpages(&file->f_path.dentry->d_inode->i_data))
mapping_nrpages(&file->f_path.dentry->d_inode->i_data)) {
gossip_debug(GOSSIP_INODE_DEBUG,
"calling flush_racache on %pU\n",
get_khandle_from_ino(inode));
flush_racache(inode);
gossip_debug(GOSSIP_INODE_DEBUG, "flush_racache finished\n");
truncate_inode_pages(file->f_path.dentry->d_inode->i_mapping,
0);
}
return 0;
}