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| author |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-03-18 23:38:50 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-03-18 23:38:50 -0700 |
| commit | 97eb3f24352ec6632c2127b35d8087d2a809a9b9 (patch) | |
| tree | 722948059bbd325bbca232269490124231df80d4 /fs/udf/symlink.c | |
| parent | Input: evdev - fix evdev_write return value on partial writes (diff) | |
| parent | Merge branch 'tsc2005' into next (diff) | |
| download | wireguard-linux-97eb3f24352ec6632c2127b35d8087d2a809a9b9.tar.xz wireguard-linux-97eb3f24352ec6632c2127b35d8087d2a809a9b9.zip | |
Merge branch 'next' into for-linus
Diffstat (limited to 'fs/udf/symlink.c')
| -rw-r--r-- | fs/udf/symlink.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/fs/udf/symlink.c b/fs/udf/symlink.c index 16064787d2b7..b1d4488b0f14 100644 --- a/fs/udf/symlink.c +++ b/fs/udf/symlink.c @@ -27,7 +27,6 @@ #include <linux/mm.h> #include <linux/stat.h> #include <linux/pagemap.h> -#include <linux/smp_lock.h> #include <linux/buffer_head.h> #include "udf_i.h" @@ -78,13 +77,16 @@ static int udf_symlink_filler(struct file *file, struct page *page) int err = -EIO; unsigned char *p = kmap(page); struct udf_inode_info *iinfo; + uint32_t pos; - lock_kernel(); iinfo = UDF_I(inode); + pos = udf_block_map(inode, 0); + + down_read(&iinfo->i_data_sem); if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) { symlink = iinfo->i_ext.i_data + iinfo->i_lenEAttr; } else { - bh = sb_bread(inode->i_sb, udf_block_map(inode, 0)); + bh = sb_bread(inode->i_sb, pos); if (!bh) goto out; @@ -95,14 +97,14 @@ static int udf_symlink_filler(struct file *file, struct page *page) udf_pc_to_char(inode->i_sb, symlink, inode->i_size, p); brelse(bh); - unlock_kernel(); + up_read(&iinfo->i_data_sem); SetPageUptodate(page); kunmap(page); unlock_page(page); return 0; out: - unlock_kernel(); + up_read(&iinfo->i_data_sem); SetPageError(page); kunmap(page); unlock_page(page); |