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9p: Add datasync to client side TFSYNC/RFSYNC for dotl

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SYNOPSIS
    size[4] Tfsync tag[2] fid[4] datasync[4]

    size[4] Rfsync tag[2]

DESCRIPTION

    The Tfsync transaction transfers ("flushes") all modified in-core data of
    file identified by fid to the disk device (or other  permanent  storage
    device)  where that  file  resides.

    If datasync flag is specified data will be fleshed but does not flush
    modified metadata unless  that  metadata  is  needed  in order to allow a
    subsequent data retrieval to be correctly handled.

Signed-off-by: Venkateswararao Jujjuri <[email protected]>
Signed-off-by: Eric Van Hensbergen <[email protected]>
This commit is contained in:
Venkateswararao Jujjuri (JV) 2010-10-22 10:13:12 -07:00 • committed by Eric Van Hensbergen
commit b165d60145
5 changed files with 9 additions and 6 deletions
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1
fs/9p/v9fs_vfs.h
View file

@ -65,5 +65,6 @@ int v9fs_uflags2omode(int uflags, int extended);
ssize_t v9fs_file_readn(struct file *, char *, char __user *, u32, u64);
void v9fs_blank_wstat(struct p9_wstat *wstat);
int v9fs_vfs_setattr_dotl(struct dentry *, struct iattr *);
int v9fs_file_fsync_dotl(struct file *filp, int datasync);
#define P9_LOCK_TIMEOUT (30*HZ)

1
fs/9p/vfs_dir.c
View file

@ -315,4 +315,5 @@ const struct file_operations v9fs_dir_operations_dotl = {
.readdir = v9fs_dir_readdir_dotl,
.open = v9fs_file_open,
.release = v9fs_dir_release,
.fsync = v9fs_file_fsync_dotl,
};

4
fs/9p/vfs_file.c
View file

@ -491,7 +491,7 @@ static int v9fs_file_fsync(struct file *filp, int datasync)
return retval;
}
static int v9fs_file_fsync_dotl(struct file *filp, int datasync)
int v9fs_file_fsync_dotl(struct file *filp, int datasync)
{
struct p9_fid *fid;
int retval;
@ -501,7 +501,7 @@ static int v9fs_file_fsync_dotl(struct file *filp, int datasync)
fid = filp->private_data;
retval = p9_client_fsync(fid);
retval = p9_client_fsync(fid, datasync);
return retval;
}