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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2010-03-05 14:43:43 -0600 |
|---|---|---|
| committer | Eric Van Hensbergen <ericvh@gmail.com> | 2010-03-05 15:04:42 -0600 |
| commit | 5717144a01d701614cfdb15f09ed562d720cf3db (patch) | |
| tree | ad9e54c39587483b0f680d3dbf4f8dd606f1f9c0 | |
| parent | c5a7697da9775f7a0e122fa23180becc311772d1 (diff) | |
| download | linux-3.10-5717144a01d701614cfdb15f09ed562d720cf3db.tar.gz linux-3.10-5717144a01d701614cfdb15f09ed562d720cf3db.tar.bz2 linux-3.10-5717144a01d701614cfdb15f09ed562d720cf3db.zip | |
fs/9p: Add hardlink support to .u extension
For regular file and directories we put the link
count in th extension field in a tagged string format.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| -rw-r--r-- | fs/9p/vfs_inode.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index d3d3c3c2000..5fe45d692c9 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -887,6 +887,8 @@ v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode, struct super_block *sb) { char ext[32]; + char tag_name[14]; + unsigned int i_nlink; struct v9fs_session_info *v9ses = sb->s_fs_info; inode->i_nlink = 1; @@ -902,7 +904,22 @@ v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode, inode->i_uid = stat->n_uid; inode->i_gid = stat->n_gid; } - + if ((S_ISREG(inode->i_mode)) || (S_ISDIR(inode->i_mode))) { + if (v9fs_proto_dotu(v9ses) && (stat->extension[0] != '\0')) { + /* + * Hadlink support got added later to + * to the .u extension. So there can be + * server out there that doesn't support + * this even with .u extension. So check + * for non NULL stat->extension + */ + strncpy(ext, stat->extension, sizeof(ext)); + /* HARDLINKCOUNT %u */ + sscanf(ext, "%13s %u", tag_name, &i_nlink); + if (!strncmp(tag_name, "HARDLINKCOUNT", 13)) + inode->i_nlink = i_nlink; + } + } inode->i_mode = p9mode2unixmode(v9ses, stat->mode); if ((S_ISBLK(inode->i_mode)) || (S_ISCHR(inode->i_mode))) { char type = 0; |