diff options
Diffstat (limited to 'fs/ext4/inode.c')
| -rw-r--r-- | fs/ext4/inode.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 51f8739d141c..748286d18d44 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -44,6 +44,7 @@ #include "truncate.h" #include <trace/events/ext4.h> +#include <trace/events/android_fs.h> #define MPAGE_DA_EXTENT_TAIL 0x01 @@ -1010,6 +1011,8 @@ static int ext4_write_begin(struct file *file, struct address_space *mapping, pgoff_t index; unsigned from, to; + trace_android_fs_datawrite_start(inode, pos, len, + current->pid, current->comm); trace_ext4_write_begin(inode, pos, len, flags); /* * Reserve one block more for addition to orphan list in case @@ -1146,6 +1149,7 @@ static int ext4_write_end(struct file *file, int ret = 0, ret2; int i_size_changed = 0; + trace_android_fs_datawrite_end(inode, pos, len); trace_ext4_write_end(inode, pos, len, copied); if (ext4_test_inode_state(inode, EXT4_STATE_ORDERED_MODE)) { ret = ext4_jbd2_file_inode(handle, inode); @@ -1222,6 +1226,7 @@ static int ext4_journalled_write_end(struct file *file, unsigned from, to; int size_changed = 0; + trace_android_fs_datawrite_end(inode, pos, len); trace_ext4_journalled_write_end(inode, pos, len, copied); from = pos & (PAGE_CACHE_SIZE - 1); to = from + len; @@ -2702,6 +2707,8 @@ static int ext4_da_write_begin(struct file *file, struct address_space *mapping, len, flags, pagep, fsdata); } *fsdata = (void *)0; + trace_android_fs_datawrite_start(inode, pos, len, + current->pid, current->comm); trace_ext4_da_write_begin(inode, pos, len, flags); if (ext4_test_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA)) { @@ -2820,6 +2827,7 @@ static int ext4_da_write_end(struct file *file, return ext4_write_end(file, mapping, pos, len, copied, page, fsdata); + trace_android_fs_datawrite_end(inode, pos, len); trace_ext4_da_write_end(inode, pos, len, copied); start = pos & (PAGE_CACHE_SIZE - 1); end = start + copied - 1; @@ -3297,12 +3305,31 @@ static ssize_t ext4_direct_IO(struct kiocb *iocb, struct iov_iter *iter, if (ext4_has_inline_data(inode)) return 0; + if (trace_android_fs_dataread_start_enabled() && + (iov_iter_rw(iter) == READ)) + trace_android_fs_dataread_start(inode, offset, count, + current->pid, + current->comm); + if (trace_android_fs_datawrite_start_enabled() && + (iov_iter_rw(iter) == WRITE)) + trace_android_fs_datawrite_start(inode, offset, count, + current->pid, + current->comm); + trace_ext4_direct_IO_enter(inode, offset, count, iov_iter_rw(iter)); if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) ret = ext4_ext_direct_IO(iocb, iter, offset); else ret = ext4_ind_direct_IO(iocb, iter, offset); trace_ext4_direct_IO_exit(inode, offset, count, iov_iter_rw(iter), ret); + + if (trace_android_fs_dataread_start_enabled() && + (iov_iter_rw(iter) == READ)) + trace_android_fs_dataread_end(inode, offset, count); + if (trace_android_fs_datawrite_start_enabled() && + (iov_iter_rw(iter) == WRITE)) + trace_android_fs_datawrite_end(inode, offset, count); + return ret; } |