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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2011-07-06 16:32:31 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-10-03 11:40:18 -0700 |
| commit | 926fa0b4b9cd6537f4750642165647aa20cfeae4 (patch) | |
| tree | 3e63b8e8a175df1ec1a79009037fde4debe2b9c7 /fs/9p/v9fs.h | |
| parent | 6170eea647404a2e5726ae81cc8ccc45db89812d (diff) | |
| download | kernel_samsung_smdk4412-926fa0b4b9cd6537f4750642165647aa20cfeae4.zip kernel_samsung_smdk4412-926fa0b4b9cd6537f4750642165647aa20cfeae4.tar.gz kernel_samsung_smdk4412-926fa0b4b9cd6537f4750642165647aa20cfeae4.tar.bz2 | |
fs/9p: Always ask new inode in create
commit ed80fcfac2565fa866d93ba14f0e75de17a8223e upstream.
This make sure we don't end up reusing the unlinked inode object.
The ideal way is to use inode i_generation. But i_generation is
not available in userspace always.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/9p/v9fs.h')
| -rw-r--r-- | fs/9p/v9fs.h | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h index 5d7392e..e78956c 100644 --- a/fs/9p/v9fs.h +++ b/fs/9p/v9fs.h @@ -153,13 +153,13 @@ extern void v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p); extern struct inode *v9fs_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid, - struct super_block *sb); + struct super_block *sb, int new); extern const struct inode_operations v9fs_dir_inode_operations_dotl; extern const struct inode_operations v9fs_file_inode_operations_dotl; extern const struct inode_operations v9fs_symlink_inode_operations_dotl; extern struct inode *v9fs_inode_from_fid_dotl(struct v9fs_session_info *v9ses, struct p9_fid *fid, - struct super_block *sb); + struct super_block *sb, int new); /* other default globals */ #define V9FS_PORT 564 @@ -201,8 +201,27 @@ v9fs_get_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid, struct super_block *sb) { if (v9fs_proto_dotl(v9ses)) - return v9fs_inode_from_fid_dotl(v9ses, fid, sb); + return v9fs_inode_from_fid_dotl(v9ses, fid, sb, 0); else - return v9fs_inode_from_fid(v9ses, fid, sb); + return v9fs_inode_from_fid(v9ses, fid, sb, 0); } + +/** + * v9fs_get_new_inode_from_fid - Helper routine to populate an inode by + * issuing a attribute request + * @v9ses: session information + * @fid: fid to issue attribute request for + * @sb: superblock on which to create inode + * + */ +static inline struct inode * +v9fs_get_new_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid, + struct super_block *sb) +{ + if (v9fs_proto_dotl(v9ses)) + return v9fs_inode_from_fid_dotl(v9ses, fid, sb, 1); + else + return v9fs_inode_from_fid(v9ses, fid, sb, 1); +} + #endif |