diff options
Diffstat (limited to 'fs/nfsd/vfs.c')
-rw-r--r-- | fs/nfsd/vfs.c | 56 |
1 files changed, 32 insertions, 24 deletions
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 7867151ebb8..2a8d665b134 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -61,12 +61,6 @@ #define NFSDDBG_FACILITY NFSDDBG_FILEOP -/* We must ignore files (but only files) which might have mandatory - * locks on them because there is no way to know if the accesser has - * the lock. - */ -#define IS_ISMNDLK(i) (S_ISREG((i)->i_mode) && MANDATORY_LOCK(i)) - /* * This is a cache of readahead params that help us choose the proper * readahead strategy. Initially, we set all readahead parameters to 0 @@ -295,7 +289,8 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap, if (!iap->ia_valid) goto out; - /* NFSv2 does not differentiate between "set-[ac]time-to-now" + /* + * NFSv2 does not differentiate between "set-[ac]time-to-now" * which only requires access, and "set-[ac]time-to-X" which * requires ownership. * So if it looks like it might be "set both to the same time which @@ -308,25 +303,33 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap, */ #define BOTH_TIME_SET (ATTR_ATIME_SET | ATTR_MTIME_SET) #define MAX_TOUCH_TIME_ERROR (30*60) - if ((iap->ia_valid & BOTH_TIME_SET) == BOTH_TIME_SET - && iap->ia_mtime.tv_sec == iap->ia_atime.tv_sec - ) { - /* Looks probable. Now just make sure time is in the right ballpark. - * Solaris, at least, doesn't seem to care what the time request is. - * We require it be within 30 minutes of now. - */ - time_t delta = iap->ia_atime.tv_sec - get_seconds(); - if (delta<0) delta = -delta; - if (delta < MAX_TOUCH_TIME_ERROR && - inode_change_ok(inode, iap) != 0) { - /* turn off ATTR_[AM]TIME_SET but leave ATTR_[AM]TIME - * this will cause notify_change to set these times to "now" + if ((iap->ia_valid & BOTH_TIME_SET) == BOTH_TIME_SET && + iap->ia_mtime.tv_sec == iap->ia_atime.tv_sec) { + /* + * Looks probable. + * + * Now just make sure time is in the right ballpark. + * Solaris, at least, doesn't seem to care what the time + * request is. We require it be within 30 minutes of now. */ - iap->ia_valid &= ~BOTH_TIME_SET; - } + time_t delta = iap->ia_atime.tv_sec - get_seconds(); + if (delta < 0) + delta = -delta; + if (delta < MAX_TOUCH_TIME_ERROR && + inode_change_ok(inode, iap) != 0) { + /* + * Turn off ATTR_[AM]TIME_SET but leave ATTR_[AM]TIME. + * This will cause notify_change to set these times + * to "now" + */ + iap->ia_valid &= ~BOTH_TIME_SET; + } } - /* The size case is special. It changes the file as well as the attributes. */ + /* + * The size case is special. + * It changes the file as well as the attributes. + */ if (iap->ia_valid & ATTR_SIZE) { if (iap->ia_size < inode->i_size) { err = nfsd_permission(rqstp, fhp->fh_export, dentry, MAY_TRUNC|MAY_OWNER_OVERRIDE); @@ -680,7 +683,12 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, err = nfserr_perm; if (IS_APPEND(inode) && (access & MAY_WRITE)) goto out; - if (IS_ISMNDLK(inode)) + /* + * We must ignore files (but only files) which might have mandatory + * locks on them because there is no way to know if the accesser has + * the lock. + */ + if (S_ISREG((inode)->i_mode) && mandatory_lock(inode)) goto out; if (!inode->i_fop) |