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| author | Al Viro <viro@zeniv.linux.org.uk> | 2016-10-08 17:44:37 +0300 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-10-08 17:44:37 +0300 |
| commit | 33e09f0ee76e9e4108c5aed67e027ef5e3fe0634 (patch) | |
| tree | ea13876185ce57c4a1aba22b33d996962b862ace /fs/inode.c | |
| parent | c5317167854e01dbb42d2291406ab8448d272868 (diff) | |
| parent | 2864f301424227d9d3bde6d550bc224a83535b46 (diff) | |
| download | linux-33e09f0ee76e9e4108c5aed67e027ef5e3fe0634.tar.xz | |
Merge branch 'work.iget' into work.misc
Diffstat (limited to 'fs/inode.c')
| -rw-r--r-- | fs/inode.c | 41 |
1 files changed, 34 insertions, 7 deletions
diff --git a/fs/inode.c b/fs/inode.c index 7e3ef3af3db9..691c00747e72 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -1021,13 +1021,17 @@ struct inode *iget5_locked(struct super_block *sb, unsigned long hashval, { struct hlist_head *head = inode_hashtable + hash(sb, hashval); struct inode *inode; - +again: spin_lock(&inode_hash_lock); inode = find_inode(sb, head, test, data); spin_unlock(&inode_hash_lock); if (inode) { wait_on_inode(inode); + if (unlikely(inode_unhashed(inode))) { + iput(inode); + goto again; + } return inode; } @@ -1064,6 +1068,10 @@ struct inode *iget5_locked(struct super_block *sb, unsigned long hashval, destroy_inode(inode); inode = old; wait_on_inode(inode); + if (unlikely(inode_unhashed(inode))) { + iput(inode); + goto again; + } } return inode; @@ -1091,12 +1099,16 @@ struct inode *iget_locked(struct super_block *sb, unsigned long ino) { struct hlist_head *head = inode_hashtable + hash(sb, ino); struct inode *inode; - +again: spin_lock(&inode_hash_lock); inode = find_inode_fast(sb, head, ino); spin_unlock(&inode_hash_lock); if (inode) { wait_on_inode(inode); + if (unlikely(inode_unhashed(inode))) { + iput(inode); + goto again; + } return inode; } @@ -1131,6 +1143,10 @@ struct inode *iget_locked(struct super_block *sb, unsigned long ino) destroy_inode(inode); inode = old; wait_on_inode(inode); + if (unlikely(inode_unhashed(inode))) { + iput(inode); + goto again; + } } return inode; } @@ -1266,10 +1282,16 @@ EXPORT_SYMBOL(ilookup5_nowait); struct inode *ilookup5(struct super_block *sb, unsigned long hashval, int (*test)(struct inode *, void *), void *data) { - struct inode *inode = ilookup5_nowait(sb, hashval, test, data); - - if (inode) + struct inode *inode; +again: + inode = ilookup5_nowait(sb, hashval, test, data); + if (inode) { wait_on_inode(inode); + if (unlikely(inode_unhashed(inode))) { + iput(inode); + goto again; + } + } return inode; } EXPORT_SYMBOL(ilookup5); @@ -1286,13 +1308,18 @@ struct inode *ilookup(struct super_block *sb, unsigned long ino) { struct hlist_head *head = inode_hashtable + hash(sb, ino); struct inode *inode; - +again: spin_lock(&inode_hash_lock); inode = find_inode_fast(sb, head, ino); spin_unlock(&inode_hash_lock); - if (inode) + if (inode) { wait_on_inode(inode); + if (unlikely(inode_unhashed(inode))) { + iput(inode); + goto again; + } + } return inode; } EXPORT_SYMBOL(ilookup); |