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author | David S. Miller <davem@davemloft.net> | 2011-09-22 09:23:13 +0200 |
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committer | David S. Miller <davem@davemloft.net> | 2011-09-22 09:23:13 +0200 |
commit | 8decf868790b48a727d7e7ca164f2bcd3c1389c0 (patch) | |
tree | b759a5f861f842af7ea76f9011b579d06e9d5508 /fs/btrfs/inode.c | |
parent | bna: PCI Probe Conf Lock Fix (diff) | |
parent | Linux 3.1-rc7 (diff) | |
download | linux-8decf868790b48a727d7e7ca164f2bcd3c1389c0.tar.xz linux-8decf868790b48a727d7e7ca164f2bcd3c1389c0.zip |
Merge branch 'master' of github.com:davem330/net
Conflicts:
MAINTAINERS
drivers/net/Kconfig
drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
drivers/net/ethernet/broadcom/tg3.c
drivers/net/wireless/iwlwifi/iwl-pci.c
drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c
drivers/net/wireless/rt2x00/rt2800usb.c
drivers/net/wireless/wl12xx/main.c
Diffstat (limited to 'fs/btrfs/inode.c')
-rw-r--r-- | fs/btrfs/inode.c | 52 |
1 files changed, 33 insertions, 19 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 15fceefbca0a..b2d004ad66a0 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1786,7 +1786,7 @@ static int btrfs_finish_ordered_io(struct inode *inode, u64 start, u64 end) &ordered_extent->list); ret = btrfs_ordered_update_i_size(inode, 0, ordered_extent); - if (!ret) { + if (!ret || !test_bit(BTRFS_ORDERED_PREALLOC, &ordered_extent->flags)) { ret = btrfs_update_inode(trans, root, inode); BUG_ON(ret); } @@ -3510,15 +3510,19 @@ int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size) err = btrfs_drop_extents(trans, inode, cur_offset, cur_offset + hole_size, &hint_byte, 1); - if (err) + if (err) { + btrfs_end_transaction(trans, root); break; + } err = btrfs_insert_file_extent(trans, root, btrfs_ino(inode), cur_offset, 0, 0, hole_size, 0, hole_size, 0, 0, 0); - if (err) + if (err) { + btrfs_end_transaction(trans, root); break; + } btrfs_drop_extent_cache(inode, hole_start, last_byte - 1, 0); @@ -3952,7 +3956,6 @@ struct inode *btrfs_iget(struct super_block *s, struct btrfs_key *location, struct btrfs_root *root, int *new) { struct inode *inode; - int bad_inode = 0; inode = btrfs_iget_locked(s, location->objectid, root); if (!inode) @@ -3968,15 +3971,12 @@ struct inode *btrfs_iget(struct super_block *s, struct btrfs_key *location, if (new) *new = 1; } else { - bad_inode = 1; + unlock_new_inode(inode); + iput(inode); + inode = ERR_PTR(-ESTALE); } } - if (bad_inode) { - iput(inode); - inode = ERR_PTR(-ESTALE); - } - return inode; } @@ -4018,7 +4018,8 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry) memcpy(&location, dentry->d_fsdata, sizeof(struct btrfs_key)); kfree(dentry->d_fsdata); dentry->d_fsdata = NULL; - d_clear_need_lookup(dentry); + /* This thing is hashed, drop it for now */ + d_drop(dentry); } else { ret = btrfs_inode_by_name(dir, dentry, &location); } @@ -4085,7 +4086,15 @@ static void btrfs_dentry_release(struct dentry *dentry) static struct dentry *btrfs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd) { - return d_splice_alias(btrfs_lookup_dentry(dir, dentry), dentry); + struct dentry *ret; + + ret = d_splice_alias(btrfs_lookup_dentry(dir, dentry), dentry); + if (unlikely(d_need_lookup(dentry))) { + spin_lock(&dentry->d_lock); + dentry->d_flags &= ~DCACHE_NEED_LOOKUP; + spin_unlock(&dentry->d_lock); + } + return ret; } unsigned char btrfs_filetype_table[] = { @@ -4125,7 +4134,8 @@ static int btrfs_real_readdir(struct file *filp, void *dirent, /* special case for "." */ if (filp->f_pos == 0) { - over = filldir(dirent, ".", 1, 1, btrfs_ino(inode), DT_DIR); + over = filldir(dirent, ".", 1, + filp->f_pos, btrfs_ino(inode), DT_DIR); if (over) return 0; filp->f_pos = 1; @@ -4134,7 +4144,7 @@ static int btrfs_real_readdir(struct file *filp, void *dirent, if (filp->f_pos == 1) { u64 pino = parent_ino(filp->f_path.dentry); over = filldir(dirent, "..", 2, - 2, pino, DT_DIR); + filp->f_pos, pino, DT_DIR); if (over) return 0; filp->f_pos = 2; @@ -5823,7 +5833,7 @@ again: add_pending_csums(trans, inode, ordered->file_offset, &ordered->list); ret = btrfs_ordered_update_i_size(inode, 0, ordered); - if (!ret) + if (!ret || !test_bit(BTRFS_ORDERED_PREALLOC, &ordered->flags)) btrfs_update_inode(trans, root, inode); ret = 0; out_unlock: @@ -7354,11 +7364,15 @@ static int btrfs_set_page_dirty(struct page *page) static int btrfs_permission(struct inode *inode, int mask) { struct btrfs_root *root = BTRFS_I(inode)->root; + umode_t mode = inode->i_mode; - if (btrfs_root_readonly(root) && (mask & MAY_WRITE)) - return -EROFS; - if ((BTRFS_I(inode)->flags & BTRFS_INODE_READONLY) && (mask & MAY_WRITE)) - return -EACCES; + if (mask & MAY_WRITE && + (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode))) { + if (btrfs_root_readonly(root)) + return -EROFS; + if (BTRFS_I(inode)->flags & BTRFS_INODE_READONLY) + return -EACCES; + } return generic_permission(inode, mask); } |