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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2017-08-01 15:39:46 -0400 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2017-08-15 11:54:47 -0400 |
| commit | a6b6d5b85abf4914bbceade5dddd54c345c64136 (patch) | |
| tree | 2cca0a777a06004ba9e8a212ce8cf8f470f7fc68 /include/linux/nfs_fs.h | |
| parent | e824f99adaaf1ed0e03eac8574599af6d992163d (diff) | |
| download | lwn-a6b6d5b85abf4914bbceade5dddd54c345c64136.tar.gz lwn-a6b6d5b85abf4914bbceade5dddd54c345c64136.zip | |
NFS: Use an atomic_long_t to count the number of requests
Rather than forcing us to take the inode->i_lock just in order to bump
the number.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'include/linux/nfs_fs.h')
| -rw-r--r-- | include/linux/nfs_fs.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 121a702888b4..238fdc4c46df 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -154,7 +154,7 @@ struct nfs_inode { */ __be32 cookieverf[2]; - unsigned long nrequests; + atomic_long_t nrequests; struct nfs_mds_commit_info commit_info; /* Open contexts for shared mmap writes */ @@ -511,7 +511,7 @@ extern void nfs_commit_free(struct nfs_commit_data *data); static inline int nfs_have_writebacks(struct inode *inode) { - return NFS_I(inode)->nrequests != 0; + return atomic_long_read(&NFS_I(inode)->nrequests) != 0; } /* |