forked from Minki/linux
Description for this pull request:
- Replace memcpy with structure assignment. - Remove unneeded codes and use helper function i_blocksize(). - Fix typos found by codespell. -----BEGIN PGP SIGNATURE----- iQJMBAABCgA2FiEE6NzKS6Uv/XAAGHgyZwv7A1FEIQgFAl+QyhMYHG5hbWphZS5q ZW9uQHNhbXN1bmcuY29tAAoJEGcL+wNRRCEIhHQP/Rfk21jZ0iRzoVG5WXVWpqrG wYCUWZu2xXmuqO+NroZ7vmSloTkj7txOSt2nyEHdbJhABOzWFxyU+pfYRpLcXVC0 uNt0Qk5wrey6JM+93ulwdrAKHqQzd5B4rv/wli4pNQKuh9FQSWUIJSEUw7m3LRvi R9TbXCwBRiMIC0NPZMNrjOtrpjHcqhAWRQHsLIoA+7XCgQ4z8T1t0IlASuCy4HTb nUNkfc7lMzFp0aW19T2EJYr6X7Yle56Ad91kFhHh9qKZEp9ET81Q3kaA5tVSGCMc hCTDdBopOvfXOuwkmDKIYObfMiAauWiGSMlP+WKQ26jfh8fLEc8MT+dInfuqSs76 dL6vtOtId/lzhTk7XjUGP3WDxmyNL9Ri9HqYfHydEUphWdWBusr1pxIMvllc6bAs PLJ9CgJHjAmRMBOpVQELRgqTqqsQgfpX/x5EmA0h4CW1JfwCTH7Y62bSI7G7RgCi sMuW57IzGBGNDw4KyFLRg0G/V8z05aehsXWqDBNfJCYbBGIHvxg0pofGHFcc8sla +HQt5rfjn7XU5RngyN5zf/ZOtuM6/tklGs2mbGNVSgZ1Px2W03k9iXU2tx4PTPIY RRNDodgVbHldB7PPllCLRJwb2m9ungz1GF/H84dNujK2oyZNksTvDCS4Ad7uW8Bf lujSPhSDZB730gYly/Vr =qmM6 -----END PGP SIGNATURE----- Merge tag 'exfat-for-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat Pull exfat updates from Namjae Jeon: - Replace memcpy with structure assignment - Remove unneeded codes and use helper function i_blocksize() - Fix typos found by codespell * tag 'exfat-for-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat: exfat: remove useless check in exfat_move_file() exfat: remove 'rwoffset' in exfat_inode_info exfat: replace memcpy with structure assignment exfat: remove useless directory scan in exfat_add_entry() exfat: eliminate dead code in exfat_find() exfat: use i_blocksize() to get blocksize exfat: fix misspellings using codespell tool
This commit is contained in:
Linus Torvalds
commit
9b06f57b9e
@ -59,9 +59,9 @@ static void exfat_get_uniname_from_ext_entry(struct super_block *sb,
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}
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/* read a directory entry from the opened directory */
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static int exfat_readdir(struct inode *inode, struct exfat_dir_entry *dir_entry)
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static int exfat_readdir(struct inode *inode, loff_t *cpos, struct exfat_dir_entry *dir_entry)
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{
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int i, dentries_per_clu, dentries_per_clu_bits = 0;
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int i, dentries_per_clu, dentries_per_clu_bits = 0, num_ext;
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unsigned int type, clu_offset;
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sector_t sector;
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struct exfat_chain dir, clu;
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@ -70,7 +70,7 @@ static int exfat_readdir(struct inode *inode, struct exfat_dir_entry *dir_entry)
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struct super_block *sb = inode->i_sb;
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struct exfat_sb_info *sbi = EXFAT_SB(sb);
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struct exfat_inode_info *ei = EXFAT_I(inode);
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unsigned int dentry = ei->rwoffset & 0xFFFFFFFF;
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unsigned int dentry = EXFAT_B_TO_DEN(*cpos) & 0xFFFFFFFF;
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struct buffer_head *bh;
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/* check if the given file ID is opened */
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@ -127,6 +127,7 @@ static int exfat_readdir(struct inode *inode, struct exfat_dir_entry *dir_entry)
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continue;
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}
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num_ext = ep->dentry.file.num_ext;
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dir_entry->attr = le16_to_cpu(ep->dentry.file.attr);
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exfat_get_entry_time(sbi, &dir_entry->crtime,
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ep->dentry.file.create_tz,
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@ -157,12 +158,13 @@ static int exfat_readdir(struct inode *inode, struct exfat_dir_entry *dir_entry)
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return -EIO;
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dir_entry->size =
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le64_to_cpu(ep->dentry.stream.valid_size);
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dir_entry->entry = dentry;
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brelse(bh);
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ei->hint_bmap.off = dentry >> dentries_per_clu_bits;
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ei->hint_bmap.clu = clu.dir;
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ei->rwoffset = ++dentry;
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*cpos = EXFAT_DEN_TO_B(dentry + 1 + num_ext);
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return 0;
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}
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@ -178,7 +180,7 @@ static int exfat_readdir(struct inode *inode, struct exfat_dir_entry *dir_entry)
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}
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dir_entry->namebuf.lfn[0] = '\0';
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ei->rwoffset = dentry;
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*cpos = EXFAT_DEN_TO_B(dentry);
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return 0;
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}
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@ -242,12 +244,10 @@ static int exfat_iterate(struct file *filp, struct dir_context *ctx)
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if (err)
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goto unlock;
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get_new:
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ei->rwoffset = EXFAT_B_TO_DEN(cpos);
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if (cpos >= i_size_read(inode))
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goto end_of_dir;
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err = exfat_readdir(inode, &de);
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err = exfat_readdir(inode, &cpos, &de);
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if (err) {
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/*
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* At least we tried to read a sector. Move cpos to next sector
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@ -262,13 +262,10 @@ get_new:
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goto end_of_dir;
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}
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cpos = EXFAT_DEN_TO_B(ei->rwoffset);
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if (!nb->lfn[0])
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goto end_of_dir;
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i_pos = ((loff_t)ei->start_clu << 32) |
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((ei->rwoffset - 1) & 0xffffffff);
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i_pos = ((loff_t)ei->start_clu << 32) | (de.entry & 0xffffffff);
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tmp = exfat_iget(sb, i_pos);
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if (tmp) {
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inum = tmp->i_ino;
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@ -911,7 +908,6 @@ enum {
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/*
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* return values:
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* >= 0 : return dir entiry position with the name in dir
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* -EEXIST : (root dir, ".") it is the root dir itself
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* -ENOENT : entry with the name does not exist
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* -EIO : I/O error
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*/
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@ -979,11 +975,8 @@ rewind:
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if (ei->hint_femp.eidx ==
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EXFAT_HINT_NONE ||
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candi_empty.eidx <=
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ei->hint_femp.eidx) {
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memcpy(&ei->hint_femp,
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&candi_empty,
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sizeof(candi_empty));
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}
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ei->hint_femp.eidx)
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ei->hint_femp = candi_empty;
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}
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brelse(bh);
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@ -128,7 +128,7 @@ enum {
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struct exfat_dentry_namebuf {
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char *lfn;
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int lfnbuf_len; /* usally MAX_UNINAME_BUF_SIZE */
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int lfnbuf_len; /* usually MAX_UNINAME_BUF_SIZE */
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};
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/* unicode name structure */
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@ -265,8 +265,6 @@ struct exfat_inode_info {
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* the validation of hint_stat.
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*/
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unsigned int version;
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/* file offset or dentry index for readdir */
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loff_t rwoffset;
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/* hint for cluster last accessed */
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struct exfat_hint hint_bmap;
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@ -208,8 +208,6 @@ int __exfat_truncate(struct inode *inode, loff_t new_size)
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/* hint information */
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ei->hint_bmap.off = EXFAT_EOF_CLUSTER;
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ei->hint_bmap.clu = EXFAT_EOF_CLUSTER;
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if (ei->rwoffset > new_size)
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ei->rwoffset = new_size;
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/* hint_stat will be used if this is directory. */
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ei->hint_stat.eidx = 0;
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@ -229,7 +227,7 @@ void exfat_truncate(struct inode *inode, loff_t size)
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{
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struct super_block *sb = inode->i_sb;
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struct exfat_sb_info *sbi = EXFAT_SB(sb);
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unsigned int blocksize = 1 << inode->i_blkbits;
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unsigned int blocksize = i_blocksize(inode);
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loff_t aligned_size;
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int err;
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@ -114,8 +114,6 @@ static int exfat_map_cluster(struct inode *inode, unsigned int clu_offset,
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unsigned int local_clu_offset = clu_offset;
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unsigned int num_to_be_allocated = 0, num_clusters = 0;
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ei->rwoffset = EXFAT_CLU_TO_B(clu_offset, sbi);
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if (EXFAT_I(inode)->i_size_ondisk > 0)
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num_clusters =
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EXFAT_B_TO_CLU_ROUND_UP(EXFAT_I(inode)->i_size_ondisk,
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@ -556,7 +554,7 @@ static int exfat_fill_inode(struct inode *inode, struct exfat_dir_entry *info)
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struct exfat_inode_info *ei = EXFAT_I(inode);
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loff_t size = info->size;
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memcpy(&ei->dir, &info->dir, sizeof(struct exfat_chain));
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ei->dir = info->dir;
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ei->entry = info->entry;
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ei->attr = info->attr;
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ei->start_clu = info->start_clu;
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@ -567,7 +565,6 @@ static int exfat_fill_inode(struct inode *inode, struct exfat_dir_entry *info)
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ei->hint_stat.eidx = 0;
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ei->hint_stat.clu = info->start_clu;
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ei->hint_femp.eidx = EXFAT_HINT_NONE;
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ei->rwoffset = 0;
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ei->hint_bmap.off = EXFAT_EOF_CLUSTER;
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ei->i_pos = 0;
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151
fs/exfat/namei.c
151
fs/exfat/namei.c
@ -290,7 +290,7 @@ static int exfat_check_max_dentries(struct inode *inode)
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{
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if (EXFAT_B_TO_DEN(i_size_read(inode)) >= MAX_EXFAT_DENTRIES) {
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/*
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* exFAT spec allows a dir to grow upto 8388608(256MB)
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* exFAT spec allows a dir to grow up to 8388608(256MB)
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* dentries
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*/
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return -ENOSPC;
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@ -318,8 +318,7 @@ static int exfat_find_empty_entry(struct inode *inode,
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hint_femp.eidx = EXFAT_HINT_NONE;
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if (ei->hint_femp.eidx != EXFAT_HINT_NONE) {
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memcpy(&hint_femp, &ei->hint_femp,
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sizeof(struct exfat_hint_femp));
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hint_femp = ei->hint_femp;
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ei->hint_femp.eidx = EXFAT_HINT_NONE;
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}
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@ -519,7 +518,7 @@ static int exfat_add_entry(struct inode *inode, const char *path,
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if (ret)
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goto out;
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memcpy(&info->dir, p_dir, sizeof(struct exfat_chain));
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info->dir = *p_dir;
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info->entry = dentry;
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info->flags = ALLOC_NO_FAT_CHAIN;
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info->type = type;
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@ -530,19 +529,10 @@ static int exfat_add_entry(struct inode *inode, const char *path,
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info->size = 0;
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info->num_subdirs = 0;
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} else {
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int count;
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struct exfat_chain cdir;
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info->attr = ATTR_SUBDIR;
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info->start_clu = start_clu;
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info->size = clu_size;
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exfat_chain_set(&cdir, info->start_clu,
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EXFAT_B_TO_CLU(info->size, sbi), info->flags);
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count = exfat_count_dir_entries(sb, &cdir);
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if (count < 0)
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return -EIO;
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info->num_subdirs = count + EXFAT_MIN_SUBDIR;
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info->num_subdirs = EXFAT_MIN_SUBDIR;
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}
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memset(&info->crtime, 0, sizeof(info->crtime));
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memset(&info->mtime, 0, sizeof(info->mtime));
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@ -604,6 +594,8 @@ static int exfat_find(struct inode *dir, struct qstr *qname,
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struct super_block *sb = dir->i_sb;
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struct exfat_sb_info *sbi = EXFAT_SB(sb);
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struct exfat_inode_info *ei = EXFAT_I(dir);
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struct exfat_dentry *ep, *ep2;
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struct exfat_entry_set_cache *es;
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if (qname->len == 0)
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return -ENOENT;
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@ -629,91 +621,63 @@ static int exfat_find(struct inode *dir, struct qstr *qname,
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dentry = exfat_find_dir_entry(sb, ei, &cdir, &uni_name,
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num_entries, TYPE_ALL);
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if ((dentry < 0) && (dentry != -EEXIST))
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if (dentry < 0)
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return dentry; /* -error value */
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memcpy(&info->dir, &cdir.dir, sizeof(struct exfat_chain));
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info->dir = cdir;
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info->entry = dentry;
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info->num_subdirs = 0;
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/* root directory itself */
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if (unlikely(dentry == -EEXIST)) {
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int num_clu = 0;
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es = exfat_get_dentry_set(sb, &cdir, dentry, ES_2_ENTRIES);
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if (!es)
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return -EIO;
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ep = exfat_get_dentry_cached(es, 0);
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ep2 = exfat_get_dentry_cached(es, 1);
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info->type = TYPE_DIR;
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info->attr = ATTR_SUBDIR;
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info->flags = ALLOC_FAT_CHAIN;
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info->start_clu = sbi->root_dir;
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memset(&info->crtime, 0, sizeof(info->crtime));
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memset(&info->mtime, 0, sizeof(info->mtime));
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memset(&info->atime, 0, sizeof(info->atime));
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info->type = exfat_get_entry_type(ep);
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info->attr = le16_to_cpu(ep->dentry.file.attr);
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info->size = le64_to_cpu(ep2->dentry.stream.valid_size);
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if ((info->type == TYPE_FILE) && (info->size == 0)) {
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info->flags = ALLOC_NO_FAT_CHAIN;
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info->start_clu = EXFAT_EOF_CLUSTER;
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} else {
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info->flags = ep2->dentry.stream.flags;
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info->start_clu =
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le32_to_cpu(ep2->dentry.stream.start_clu);
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}
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exfat_chain_set(&cdir, sbi->root_dir, 0, ALLOC_FAT_CHAIN);
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if (exfat_count_num_clusters(sb, &cdir, &num_clu))
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return -EIO;
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info->size = num_clu << sbi->cluster_size_bits;
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exfat_get_entry_time(sbi, &info->crtime,
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ep->dentry.file.create_tz,
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ep->dentry.file.create_time,
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ep->dentry.file.create_date,
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ep->dentry.file.create_time_cs);
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exfat_get_entry_time(sbi, &info->mtime,
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ep->dentry.file.modify_tz,
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ep->dentry.file.modify_time,
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ep->dentry.file.modify_date,
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ep->dentry.file.modify_time_cs);
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exfat_get_entry_time(sbi, &info->atime,
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ep->dentry.file.access_tz,
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ep->dentry.file.access_time,
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ep->dentry.file.access_date,
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0);
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exfat_free_dentry_set(es, false);
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if (ei->start_clu == EXFAT_FREE_CLUSTER) {
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exfat_fs_error(sb,
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"non-zero size file starts with zero cluster (size : %llu, p_dir : %u, entry : 0x%08x)",
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i_size_read(dir), ei->dir.dir, ei->entry);
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return -EIO;
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}
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if (info->type == TYPE_DIR) {
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exfat_chain_set(&cdir, info->start_clu,
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EXFAT_B_TO_CLU(info->size, sbi), info->flags);
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count = exfat_count_dir_entries(sb, &cdir);
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if (count < 0)
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return -EIO;
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info->num_subdirs = count;
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} else {
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struct exfat_dentry *ep, *ep2;
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struct exfat_entry_set_cache *es;
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es = exfat_get_dentry_set(sb, &cdir, dentry, ES_2_ENTRIES);
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if (!es)
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return -EIO;
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ep = exfat_get_dentry_cached(es, 0);
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ep2 = exfat_get_dentry_cached(es, 1);
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info->type = exfat_get_entry_type(ep);
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info->attr = le16_to_cpu(ep->dentry.file.attr);
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info->size = le64_to_cpu(ep2->dentry.stream.valid_size);
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if ((info->type == TYPE_FILE) && (info->size == 0)) {
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info->flags = ALLOC_NO_FAT_CHAIN;
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info->start_clu = EXFAT_EOF_CLUSTER;
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} else {
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info->flags = ep2->dentry.stream.flags;
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info->start_clu =
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le32_to_cpu(ep2->dentry.stream.start_clu);
|
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}
|
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|
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if (ei->start_clu == EXFAT_FREE_CLUSTER) {
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exfat_fs_error(sb,
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"non-zero size file starts with zero cluster (size : %llu, p_dir : %u, entry : 0x%08x)",
|
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i_size_read(dir), ei->dir.dir, ei->entry);
|
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exfat_free_dentry_set(es, false);
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return -EIO;
|
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}
|
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|
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exfat_get_entry_time(sbi, &info->crtime,
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ep->dentry.file.create_tz,
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ep->dentry.file.create_time,
|
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ep->dentry.file.create_date,
|
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ep->dentry.file.create_time_cs);
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exfat_get_entry_time(sbi, &info->mtime,
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ep->dentry.file.modify_tz,
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ep->dentry.file.modify_time,
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ep->dentry.file.modify_date,
|
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ep->dentry.file.modify_time_cs);
|
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exfat_get_entry_time(sbi, &info->atime,
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ep->dentry.file.access_tz,
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ep->dentry.file.access_time,
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ep->dentry.file.access_date,
|
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0);
|
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exfat_free_dentry_set(es, false);
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|
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if (info->type == TYPE_DIR) {
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exfat_chain_set(&cdir, info->start_clu,
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EXFAT_B_TO_CLU(info->size, sbi), info->flags);
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count = exfat_count_dir_entries(sb, &cdir);
|
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if (count < 0)
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return -EIO;
|
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|
||||
info->num_subdirs = count + EXFAT_MIN_SUBDIR;
|
||||
}
|
||||
info->num_subdirs = count + EXFAT_MIN_SUBDIR;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
@ -1065,7 +1029,7 @@ static int exfat_rename_file(struct inode *inode, struct exfat_chain *p_dir,
|
||||
if (!epnew)
|
||||
return -EIO;
|
||||
|
||||
memcpy(epnew, epold, DENTRY_SIZE);
|
||||
*epnew = *epold;
|
||||
if (exfat_get_entry_type(epnew) == TYPE_FILE) {
|
||||
epnew->dentry.file.attr |= cpu_to_le16(ATTR_ARCHIVE);
|
||||
ei->attr |= ATTR_ARCHIVE;
|
||||
@ -1085,7 +1049,7 @@ static int exfat_rename_file(struct inode *inode, struct exfat_chain *p_dir,
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
memcpy(epnew, epold, DENTRY_SIZE);
|
||||
*epnew = *epold;
|
||||
exfat_update_bh(new_bh, sync);
|
||||
brelse(old_bh);
|
||||
brelse(new_bh);
|
||||
@ -1130,11 +1094,6 @@ static int exfat_move_file(struct inode *inode, struct exfat_chain *p_olddir,
|
||||
if (!epmov)
|
||||
return -EIO;
|
||||
|
||||
/* check if the source and target directory is the same */
|
||||
if (exfat_get_entry_type(epmov) == TYPE_DIR &&
|
||||
le32_to_cpu(epmov->dentry.stream.start_clu) == p_newdir->dir)
|
||||
return -EINVAL;
|
||||
|
||||
num_old_entries = exfat_count_ext_entries(sb, p_olddir, oldentry,
|
||||
epmov);
|
||||
if (num_old_entries < 0)
|
||||
@ -1153,7 +1112,7 @@ static int exfat_move_file(struct inode *inode, struct exfat_chain *p_olddir,
|
||||
if (!epnew)
|
||||
return -EIO;
|
||||
|
||||
memcpy(epnew, epmov, DENTRY_SIZE);
|
||||
*epnew = *epmov;
|
||||
if (exfat_get_entry_type(epnew) == TYPE_FILE) {
|
||||
epnew->dentry.file.attr |= cpu_to_le16(ATTR_ARCHIVE);
|
||||
ei->attr |= ATTR_ARCHIVE;
|
||||
@ -1173,7 +1132,7 @@ static int exfat_move_file(struct inode *inode, struct exfat_chain *p_olddir,
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
memcpy(epnew, epmov, DENTRY_SIZE);
|
||||
*epnew = *epmov;
|
||||
exfat_update_bh(new_bh, IS_DIRSYNC(inode));
|
||||
brelse(mov_bh);
|
||||
brelse(new_bh);
|
||||
|
||||
@ -11,7 +11,7 @@
|
||||
#include "exfat_raw.h"
|
||||
#include "exfat_fs.h"
|
||||
|
||||
/* Upcase tabel macro */
|
||||
/* Upcase table macro */
|
||||
#define EXFAT_NUM_UPCASE (2918)
|
||||
#define UTBL_COUNT (0x10000)
|
||||
|
||||
|
||||
@ -342,7 +342,6 @@ static int exfat_read_root(struct inode *inode)
|
||||
ei->flags = ALLOC_FAT_CHAIN;
|
||||
ei->type = TYPE_DIR;
|
||||
ei->version = 0;
|
||||
ei->rwoffset = 0;
|
||||
ei->hint_bmap.off = EXFAT_EOF_CLUSTER;
|
||||
ei->hint_stat.eidx = 0;
|
||||
ei->hint_stat.clu = sbi->root_dir;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user