No functionality changed at all.
Best regards,
Anton
-- Anton Altaparmakov <aia21 at cantab.net> (replace at with @) Linux NTFS maintainer / IRC: #ntfs on irc.freenode.net WWW: http://linux-ntfs.sf.net/, http://www-stu.christs.cam.ac.uk/~aia21/===================================================================
This will update the following files:
fs/inode.c | 87 +++++++++++++++++++++++++++++++++++-------------------------- 1 files changed, 50 insertions(+), 37 deletions(-)
through these ChangeSets:
<aia21@cantab.net> (02/09/18 1.536.1.38) Cleanup: Convert fs/inode.c::iget_locked() and iget5_locked() to use the new ifind_fast() and ifind() helpers, respectively.
diff -Nru a/fs/inode.c b/fs/inode.c --- a/fs/inode.c Thu Sep 19 10:39:43 2002 +++ b/fs/inode.c Thu Sep 19 10:39:43 2002 @@ -535,7 +535,7 @@ inode->i_state &= ~(I_LOCK|I_NEW); wake_up_inode(inode); } - +EXPORT_SYMBOL(unlock_new_inode); /* * This is called without the inode lock held.. Be careful. @@ -812,65 +812,78 @@ } EXPORT_SYMBOL(ilookup); -/* - * This is iget without the read_inode portion of get_new_inode - * the filesystem gets back a new locked and hashed inode and gets - * to fill it in before unlocking it via unlock_new_inode(). +/** + * iget5_locked - obtain an inode from a mounted file system + * @sb: super block of file system + * @hashval: hash value (usually inode number) to get + * @test: callback used for comparisons between inodes + * @set: callback used to initialize a new struct inode + * @data: opaque data pointer to pass to @test and @set + * + * This is iget() without the read_inode() portion of get_new_inode(). + * + * iget5_locked() uses ifind() to search for the inode specified by @hashval + * and @data in the inode cache and if present it is returned with an increased + * reference count. This is a generalized version of iget_locked() for file + * systems where the inode number is not sufficient for unique identification + * of an inode. + * + * If the inode is not in cache, get_new_inode() is called to allocate a new + * inode and this is returned locked, hashed, and with the I_NEW flag set. The + * file system gets to fill it in before unlocking it via unlock_new_inode(). + * + * Note both @test and @set are called with the inode_lock held, so can't sleep. */ -struct inode *iget5_locked(struct super_block *sb, unsigned long hashval, int (*test)(struct inode *, void *), int (*set)(struct inode *, void *), void *data) +struct inode *iget5_locked(struct super_block *sb, unsigned long hashval, + int (*test)(struct inode *, void *), + int (*set)(struct inode *, void *), void *data) { - struct list_head * head = inode_hashtable + hash(sb, hashval); - struct inode * inode; + struct list_head *head = inode_hashtable + hash(sb, hashval); + struct inode *inode; - spin_lock(&inode_lock); - inode = find_inode(sb, head, test, data); - if (inode) { - __iget(inode); - spin_unlock(&inode_lock); - wait_on_inode(inode); + inode = ifind(sb, head, test, data); + if (inode) return inode; - } - spin_unlock(&inode_lock); - /* * get_new_inode() will do the right thing, re-trying the search * in case it had to block at any point. */ return get_new_inode(sb, head, test, set, data); } +EXPORT_SYMBOL(iget5_locked); -/* - * Because most filesystems are based on 32-bit unique inode numbers some - * functions are duplicated to keep iget_locked as a fast path. We can avoid - * unnecessary pointer dereferences and function calls for this specific - * case. The duplicated functions (find_inode_fast and get_new_inode_fast) - * have the same pre- and post-conditions as their original counterparts. +/** + * iget_locked - obtain an inode from a mounted file system + * @sb: super block of file system + * @ino: inode number to get + * + * This is iget() without the read_inode() portion of get_new_inode_fast(). + * + * iget_locked() uses ifind_fast() to search for the inode specified by @ino in + * the inode cache and if present it is returned with an increased reference + * count. This is for file systems where the inode number is sufficient for + * unique identification of an inode. + * + * If the inode is not in cache, get_new_inode_fast() is called to allocate a + * new inode and this is returned locked, hashed, and with the I_NEW flag set. + * The file system gets to fill it in before unlocking it via + * unlock_new_inode(). */ struct inode *iget_locked(struct super_block *sb, unsigned long ino) { - struct list_head * head = inode_hashtable + hash(sb, ino); - struct inode * inode; + struct list_head *head = inode_hashtable + hash(sb, ino); + struct inode *inode; - spin_lock(&inode_lock); - inode = find_inode_fast(sb, head, ino); - if (inode) { - __iget(inode); - spin_unlock(&inode_lock); - wait_on_inode(inode); + inode = ifind_fast(sb, head, ino); + if (inode) return inode; - } - spin_unlock(&inode_lock); - /* * get_new_inode_fast() will do the right thing, re-trying the search * in case it had to block at any point. */ return get_new_inode_fast(sb, head, ino); } - -EXPORT_SYMBOL(iget5_locked); EXPORT_SYMBOL(iget_locked); -EXPORT_SYMBOL(unlock_new_inode); /** * __insert_inode_hash - hash an inode
===================================================================
This BitKeeper patch contains the following changesets: 1.536.1.38 ## Wrapped with gzip_uu ##
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