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ext4: fix race writing to an inline_data file while its xattrs are ch… #52

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ext4: fix race writing to an inline_data file while its xattrs are ch… #52

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6 changes: 6 additions & 0 deletions fs/ext4/inline.c
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Original file line number Diff line number Diff line change
Expand Up @@ -764,6 +764,12 @@ int ext4_write_inline_data_end(struct inode *inode, loff_t pos, unsigned len,
ext4_write_lock_xattr(inode, &no_expand);
BUG_ON(!ext4_has_inline_data(inode));

/*
* ei->i_inline_off may have changed since ext4_write_begin()
* called ext4_try_to_write_inline_data()
*/
(void) ext4_find_inline_data_nolock(inode);

kaddr = kmap_atomic(page);
ext4_write_inline_data(inode, &iloc, kaddr, pos, len);
kunmap_atomic(kaddr);
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