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authorMiklos Szeredi <miklos@szeredi.hu>2006-07-30 03:04:10 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-31 13:28:43 -0700
commit0a0898cf413876d4ed6e371f3e04bf38600a9205 (patch)
tree700c9e87bdd78392bd3fa11f2f976d360b8a5cd2 /fs/fuse/fuse_i.h
parent685d16ddb07b74537fb18972784e6214840fdd20 (diff)
downloadop-kernel-dev-0a0898cf413876d4ed6e371f3e04bf38600a9205.zip
op-kernel-dev-0a0898cf413876d4ed6e371f3e04bf38600a9205.tar.gz
[PATCH] fuse: use jiffies_64
It is entirely possible (though rare) that jiffies half-wraps around, while a dentry/inode remains in the cache. This could mean that the dentry/inode is not invalidated for another half wraparound-time. To get around this problem, use 64-bit jiffies. The only problem with this is that dentry->d_time is 32 bits on 32-bit archs. So use d_fsdata as the high 32 bits. This is an ugly hack, but far simpler, than having to allocate private data just for this purpose. Since 64-bit jiffies can be assumed never to wrap around, simple comparison can be used, and a zero time value can represent "invalid". Signed-off-by: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/fuse/fuse_i.h')
-rw-r--r--fs/fuse/fuse_i.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 0dbf966..69c7750 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -59,7 +59,7 @@ struct fuse_inode {
struct fuse_req *forget_req;
/** Time in jiffies until the file attributes are valid */
- unsigned long i_time;
+ u64 i_time;
};
/** FUSE specific file data */
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